Home / 15,139.94-22,713.60-5,279.30

Finding the Fourth Proportional to 15,139.94, 22,713.60 and 5,279.30

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Solution

The fourth proportional to 15,139.94, 22,713.60 and 5,279.30 is: 7,920.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,139.94 : 22,713.60 = 5,279.30 : x
  2. Step 2: Convert to fraction form
    15,139.94/22,713.60 = 5,279.30/x
  3. Step 3: Cross multiply
    15,139.94x = 22,713.60 × 5,279.30
  4. Step 4: Simplify right side
    15,139.94x = 119,911,908.48
  5. Step 5: Solve for x
    x = 119,911,908.48/15,139.94
  6. Step 6: Final answer
    x = 7,920.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.