Home / 14,115.67-21,177.88-8,499.52

Finding the Fourth Proportional to 14,115.67, 21,177.88 and 8,499.52

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Solution

The fourth proportional to 14,115.67, 21,177.88 and 8,499.52 is: 12,751.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.67 : 21,177.88 = 8,499.52 : x
  2. Step 2: Convert to fraction form
    14,115.67/21,177.88 = 8,499.52/x
  3. Step 3: Cross multiply
    14,115.67x = 21,177.88 × 8,499.52
  4. Step 4: Simplify right side
    14,115.67x = 180,001,756.45
  5. Step 5: Solve for x
    x = 180,001,756.45/14,115.67
  6. Step 6: Final answer
    x = 12,751.91

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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.