Home / 6,909.50-9,531.54-4,672.18

Finding the Fourth Proportional to 6,909.50, 9,531.54 and 4,672.18

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Solution

The fourth proportional to 6,909.50, 9,531.54 and 4,672.18 is: 6,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.50 : 9,531.54 = 4,672.18 : x
  2. Step 2: Convert to fraction form
    6,909.50/9,531.54 = 4,672.18/x
  3. Step 3: Cross multiply
    6,909.50x = 9,531.54 × 4,672.18
  4. Step 4: Simplify right side
    6,909.50x = 44,533,082.47
  5. Step 5: Solve for x
    x = 44,533,082.47/6,909.50
  6. Step 6: Final answer
    x = 6,445.19

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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.