Home / 10,327.10-15,490.85-2,931.59

Finding the Fourth Proportional to 10,327.10, 15,490.85 and 2,931.59

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Solution

The fourth proportional to 10,327.10, 15,490.85 and 2,931.59 is: 4,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,327.10 : 15,490.85 = 2,931.59 : x
  2. Step 2: Convert to fraction form
    10,327.10/15,490.85 = 2,931.59/x
  3. Step 3: Cross multiply
    10,327.10x = 15,490.85 × 2,931.59
  4. Step 4: Simplify right side
    10,327.10x = 45,412,845.02
  5. Step 5: Solve for x
    x = 45,412,845.02/10,327.10
  6. Step 6: Final answer
    x = 4,397.45

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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.