Home / 14,279.21-19,712.45-8,976.95

Finding the Fourth Proportional to 14,279.21, 19,712.45 and 8,976.95

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Solution

The fourth proportional to 14,279.21, 19,712.45 and 8,976.95 is: 12,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.21 : 19,712.45 = 8,976.95 : x
  2. Step 2: Convert to fraction form
    14,279.21/19,712.45 = 8,976.95/x
  3. Step 3: Cross multiply
    14,279.21x = 19,712.45 × 8,976.95
  4. Step 4: Simplify right side
    14,279.21x = 176,957,601.91
  5. Step 5: Solve for x
    x = 176,957,601.91/14,279.21
  6. Step 6: Final answer
    x = 12,392.68

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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.