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Finding the Fourth Proportional to 12,559.65, 17,332.68 and 7,182.99

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Solution

The fourth proportional to 12,559.65, 17,332.68 and 7,182.99 is: 9,912.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.65 : 17,332.68 = 7,182.99 : x
  2. Step 2: Convert to fraction form
    12,559.65/17,332.68 = 7,182.99/x
  3. Step 3: Cross multiply
    12,559.65x = 17,332.68 × 7,182.99
  4. Step 4: Simplify right side
    12,559.65x = 124,500,467.11
  5. Step 5: Solve for x
    x = 124,500,467.11/12,559.65
  6. Step 6: Final answer
    x = 9,912.73

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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.