Home / 11,177.02-15,425.65-6,398.74

Finding the Fourth Proportional to 11,177.02, 15,425.65 and 6,398.74

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Solution

The fourth proportional to 11,177.02, 15,425.65 and 6,398.74 is: 8,831.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,177.02 : 15,425.65 = 6,398.74 : x
  2. Step 2: Convert to fraction form
    11,177.02/15,425.65 = 6,398.74/x
  3. Step 3: Cross multiply
    11,177.02x = 15,425.65 × 6,398.74
  4. Step 4: Simplify right side
    11,177.02x = 98,704,723.68
  5. Step 5: Solve for x
    x = 98,704,723.68/11,177.02
  6. Step 6: Final answer
    x = 8,831.04

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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.