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Finding the Fourth Proportional to 10,903.56, 15,041.90 and 6,425.16

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Solution

The fourth proportional to 10,903.56, 15,041.90 and 6,425.16 is: 8,863.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,903.56 : 15,041.90 = 6,425.16 : x
  2. Step 2: Convert to fraction form
    10,903.56/15,041.90 = 6,425.16/x
  3. Step 3: Cross multiply
    10,903.56x = 15,041.90 × 6,425.16
  4. Step 4: Simplify right side
    10,903.56x = 96,646,614.20
  5. Step 5: Solve for x
    x = 96,646,614.20/10,903.56
  6. Step 6: Final answer
    x = 8,863.77

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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.