Home / 10,389.29-14,341.19-7,049.39

Finding the Fourth Proportional to 10,389.29, 14,341.19 and 7,049.39

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Solution

The fourth proportional to 10,389.29, 14,341.19 and 7,049.39 is: 9,730.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389.29 : 14,341.19 = 7,049.39 : x
  2. Step 2: Convert to fraction form
    10,389.29/14,341.19 = 7,049.39/x
  3. Step 3: Cross multiply
    10,389.29x = 14,341.19 × 7,049.39
  4. Step 4: Simplify right side
    10,389.29x = 101,096,534.42
  5. Step 5: Solve for x
    x = 101,096,534.42/10,389.29
  6. Step 6: Final answer
    x = 9,730.85

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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.