Home / 14,279.92-19,715.22-9,177.50

Finding the Fourth Proportional to 14,279.92, 19,715.22 and 9,177.50

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Solution

The fourth proportional to 14,279.92, 19,715.22 and 9,177.50 is: 12,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.92 : 19,715.22 = 9,177.50 : x
  2. Step 2: Convert to fraction form
    14,279.92/19,715.22 = 9,177.50/x
  3. Step 3: Cross multiply
    14,279.92x = 19,715.22 × 9,177.50
  4. Step 4: Simplify right side
    14,279.92x = 180,936,431.55
  5. Step 5: Solve for x
    x = 180,936,431.55/14,279.92
  6. Step 6: Final answer
    x = 12,670.69

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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.