Home / 10,359.41-15,543.72-5,427.90

Finding the Fourth Proportional to 10,359.41, 15,543.72 and 5,427.90

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Solution

The fourth proportional to 10,359.41, 15,543.72 and 5,427.90 is: 8,144.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,359.41 : 15,543.72 = 5,427.90 : x
  2. Step 2: Convert to fraction form
    10,359.41/15,543.72 = 5,427.90/x
  3. Step 3: Cross multiply
    10,359.41x = 15,543.72 × 5,427.90
  4. Step 4: Simplify right side
    10,359.41x = 84,369,757.79
  5. Step 5: Solve for x
    x = 84,369,757.79/10,359.41
  6. Step 6: Final answer
    x = 8,144.26

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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.