Home / 12,599.05-17,389.10-8,342.61

Finding the Fourth Proportional to 12,599.05, 17,389.10 and 8,342.61

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Solution

The fourth proportional to 12,599.05, 17,389.10 and 8,342.61 is: 11,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.05 : 17,389.10 = 8,342.61 : x
  2. Step 2: Convert to fraction form
    12,599.05/17,389.10 = 8,342.61/x
  3. Step 3: Cross multiply
    12,599.05x = 17,389.10 × 8,342.61
  4. Step 4: Simplify right side
    12,599.05x = 145,070,479.55
  5. Step 5: Solve for x
    x = 145,070,479.55/12,599.05
  6. Step 6: Final answer
    x = 11,514.40

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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.