Home / 9,389.56-14,065.20-5,429.28

Finding the Fourth Proportional to 9,389.56, 14,065.20 and 5,429.28

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Solution

The fourth proportional to 9,389.56, 14,065.20 and 5,429.28 is: 8,132.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.56 : 14,065.20 = 5,429.28 : x
  2. Step 2: Convert to fraction form
    9,389.56/14,065.20 = 5,429.28/x
  3. Step 3: Cross multiply
    9,389.56x = 14,065.20 × 5,429.28
  4. Step 4: Simplify right side
    9,389.56x = 76,363,909.06
  5. Step 5: Solve for x
    x = 76,363,909.06/9,389.56
  6. Step 6: Final answer
    x = 8,132.85

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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.