Home / 12,521.50-17,277.97-7,484.65

Finding the Fourth Proportional to 12,521.50, 17,277.97 and 7,484.65

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Solution

The fourth proportional to 12,521.50, 17,277.97 and 7,484.65 is: 10,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.50 : 17,277.97 = 7,484.65 : x
  2. Step 2: Convert to fraction form
    12,521.50/17,277.97 = 7,484.65/x
  3. Step 3: Cross multiply
    12,521.50x = 17,277.97 × 7,484.65
  4. Step 4: Simplify right side
    12,521.50x = 129,319,558.16
  5. Step 5: Solve for x
    x = 129,319,558.16/12,521.50
  6. Step 6: Final answer
    x = 10,327.80

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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.