Home / 14,691.36-20,271.92-8,723.28

Finding the Fourth Proportional to 14,691.36, 20,271.92 and 8,723.28

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Solution

The fourth proportional to 14,691.36, 20,271.92 and 8,723.28 is: 12,036.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,691.36 : 20,271.92 = 8,723.28 : x
  2. Step 2: Convert to fraction form
    14,691.36/20,271.92 = 8,723.28/x
  3. Step 3: Cross multiply
    14,691.36x = 20,271.92 × 8,723.28
  4. Step 4: Simplify right side
    14,691.36x = 176,837,634.30
  5. Step 5: Solve for x
    x = 176,837,634.30/14,691.36
  6. Step 6: Final answer
    x = 12,036.85

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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.