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Finding the Fourth Proportional to 12,498.65, 17,224.30 and 8,955.71

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Solution

The fourth proportional to 12,498.65, 17,224.30 and 8,955.71 is: 12,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,498.65 : 17,224.30 = 8,955.71 : x
  2. Step 2: Convert to fraction form
    12,498.65/17,224.30 = 8,955.71/x
  3. Step 3: Cross multiply
    12,498.65x = 17,224.30 × 8,955.71
  4. Step 4: Simplify right side
    12,498.65x = 154,255,871.93
  5. Step 5: Solve for x
    x = 154,255,871.93/12,498.65
  6. Step 6: Final answer
    x = 12,341.80

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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.