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Finding the Fourth Proportional to 9,401.70, 14,102.55 and 7,992.30

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Solution

The fourth proportional to 9,401.70, 14,102.55 and 7,992.30 is: 11,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,401.70 : 14,102.55 = 7,992.30 : x
  2. Step 2: Convert to fraction form
    9,401.70/14,102.55 = 7,992.30/x
  3. Step 3: Cross multiply
    9,401.70x = 14,102.55 × 7,992.30
  4. Step 4: Simplify right side
    9,401.70x = 112,711,810.37
  5. Step 5: Solve for x
    x = 112,711,810.37/9,401.70
  6. Step 6: Final answer
    x = 11,988.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.