Home / 9,129.53-12,587.33-7,619.26

Finding the Fourth Proportional to 9,129.53, 12,587.33 and 7,619.26

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Solution

The fourth proportional to 9,129.53, 12,587.33 and 7,619.26 is: 10,505.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.53 : 12,587.33 = 7,619.26 : x
  2. Step 2: Convert to fraction form
    9,129.53/12,587.33 = 7,619.26/x
  3. Step 3: Cross multiply
    9,129.53x = 12,587.33 × 7,619.26
  4. Step 4: Simplify right side
    9,129.53x = 95,906,139.98
  5. Step 5: Solve for x
    x = 95,906,139.98/9,129.53
  6. Step 6: Final answer
    x = 10,505.05

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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.