Home / 15,519.15-23,279.15-5,665.77

Finding the Fourth Proportional to 15,519.15, 23,279.15 and 5,665.77

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Solution

The fourth proportional to 15,519.15, 23,279.15 and 5,665.77 is: 8,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,519.15 : 23,279.15 = 5,665.77 : x
  2. Step 2: Convert to fraction form
    15,519.15/23,279.15 = 5,665.77/x
  3. Step 3: Cross multiply
    15,519.15x = 23,279.15 × 5,665.77
  4. Step 4: Simplify right side
    15,519.15x = 131,894,323.86
  5. Step 5: Solve for x
    x = 131,894,323.86/15,519.15
  6. Step 6: Final answer
    x = 8,498.81

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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.