Home / 9,011.04-12,432.48-7,122.96

Finding the Fourth Proportional to 9,011.04, 12,432.48 and 7,122.96

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Solution

The fourth proportional to 9,011.04, 12,432.48 and 7,122.96 is: 9,827.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.04 : 12,432.48 = 7,122.96 : x
  2. Step 2: Convert to fraction form
    9,011.04/12,432.48 = 7,122.96/x
  3. Step 3: Cross multiply
    9,011.04x = 12,432.48 × 7,122.96
  4. Step 4: Simplify right side
    9,011.04x = 88,556,057.74
  5. Step 5: Solve for x
    x = 88,556,057.74/9,011.04
  6. Step 6: Final answer
    x = 9,827.51

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.