Home / 9,184.32-12,679.20-7,372.08

Finding the Fourth Proportional to 9,184.32, 12,679.20 and 7,372.08

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Solution

The fourth proportional to 9,184.32, 12,679.20 and 7,372.08 is: 10,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,184.32 : 12,679.20 = 7,372.08 : x
  2. Step 2: Convert to fraction form
    9,184.32/12,679.20 = 7,372.08/x
  3. Step 3: Cross multiply
    9,184.32x = 12,679.20 × 7,372.08
  4. Step 4: Simplify right side
    9,184.32x = 93,472,076.74
  5. Step 5: Solve for x
    x = 93,472,076.74/9,184.32
  6. Step 6: Final answer
    x = 10,177.35

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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.