Home / 7,489.45-10,335.43-4,132.47

Finding the Fourth Proportional to 7,489.45, 10,335.43 and 4,132.47

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Solution

The fourth proportional to 7,489.45, 10,335.43 and 4,132.47 is: 5,702.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,489.45 : 10,335.43 = 4,132.47 : x
  2. Step 2: Convert to fraction form
    7,489.45/10,335.43 = 4,132.47/x
  3. Step 3: Cross multiply
    7,489.45x = 10,335.43 × 4,132.47
  4. Step 4: Simplify right side
    7,489.45x = 42,710,854.41
  5. Step 5: Solve for x
    x = 42,710,854.41/7,489.45
  6. Step 6: Final answer
    x = 5,702.80

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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.