Home / 13,934.40-19,229.52-7,646.88

Finding the Fourth Proportional to 13,934.40, 19,229.52 and 7,646.88

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Solution

The fourth proportional to 13,934.40, 19,229.52 and 7,646.88 is: 10,552.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.40 : 19,229.52 = 7,646.88 : x
  2. Step 2: Convert to fraction form
    13,934.40/19,229.52 = 7,646.88/x
  3. Step 3: Cross multiply
    13,934.40x = 19,229.52 × 7,646.88
  4. Step 4: Simplify right side
    13,934.40x = 147,045,831.90
  5. Step 5: Solve for x
    x = 147,045,831.90/13,934.40
  6. Step 6: Final answer
    x = 10,552.72

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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.