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Finding the Fourth Proportional to 9,920.95, 14,881.43 and 2,995.45

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Solution

The fourth proportional to 9,920.95, 14,881.43 and 2,995.45 is: 4,493.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.95 : 14,881.43 = 2,995.45 : x
  2. Step 2: Convert to fraction form
    9,920.95/14,881.43 = 2,995.45/x
  3. Step 3: Cross multiply
    9,920.95x = 14,881.43 × 2,995.45
  4. Step 4: Simplify right side
    9,920.95x = 44,576,490.11
  5. Step 5: Solve for x
    x = 44,576,490.11/9,920.95
  6. Step 6: Final answer
    x = 4,493.17

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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.