Home / 10,387.56-14,335.28-5,912.11

Finding the Fourth Proportional to 10,387.56, 14,335.28 and 5,912.11

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Solution

The fourth proportional to 10,387.56, 14,335.28 and 5,912.11 is: 8,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.56 : 14,335.28 = 5,912.11 : x
  2. Step 2: Convert to fraction form
    10,387.56/14,335.28 = 5,912.11/x
  3. Step 3: Cross multiply
    10,387.56x = 14,335.28 × 5,912.11
  4. Step 4: Simplify right side
    10,387.56x = 84,751,752.24
  5. Step 5: Solve for x
    x = 84,751,752.24/10,387.56
  6. Step 6: Final answer
    x = 8,158.97

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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.