Home / 10,612.38-15,903.48-7,817.07

Finding the Fourth Proportional to 10,612.38, 15,903.48 and 7,817.07

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Solution

The fourth proportional to 10,612.38, 15,903.48 and 7,817.07 is: 11,714.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,612.38 : 15,903.48 = 7,817.07 : x
  2. Step 2: Convert to fraction form
    10,612.38/15,903.48 = 7,817.07/x
  3. Step 3: Cross multiply
    10,612.38x = 15,903.48 × 7,817.07
  4. Step 4: Simplify right side
    10,612.38x = 124,318,616.40
  5. Step 5: Solve for x
    x = 124,318,616.40/10,612.38
  6. Step 6: Final answer
    x = 11,714.49

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Double scale
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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.