Home / 9,129.30-12,585.88-5,770.43

Finding the Fourth Proportional to 9,129.30, 12,585.88 and 5,770.43

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Solution

The fourth proportional to 9,129.30, 12,585.88 and 5,770.43 is: 7,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.30 : 12,585.88 = 5,770.43 : x
  2. Step 2: Convert to fraction form
    9,129.30/12,585.88 = 5,770.43/x
  3. Step 3: Cross multiply
    9,129.30x = 12,585.88 × 5,770.43
  4. Step 4: Simplify right side
    9,129.30x = 72,625,939.53
  5. Step 5: Solve for x
    x = 72,625,939.53/9,129.30
  6. Step 6: Final answer
    x = 7,955.26

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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.