Home / 9,377.28-12,939.84-5,184.48

Finding the Fourth Proportional to 9,377.28, 12,939.84 and 5,184.48

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Solution

The fourth proportional to 9,377.28, 12,939.84 and 5,184.48 is: 7,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,377.28 : 12,939.84 = 5,184.48 : x
  2. Step 2: Convert to fraction form
    9,377.28/12,939.84 = 5,184.48/x
  3. Step 3: Cross multiply
    9,377.28x = 12,939.84 × 5,184.48
  4. Step 4: Simplify right side
    9,377.28x = 67,086,341.68
  5. Step 5: Solve for x
    x = 67,086,341.68/9,377.28
  6. Step 6: Final answer
    x = 7,154.14

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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.