Home / 12,841.29-17,719.66-8,811.57

Finding the Fourth Proportional to 12,841.29, 17,719.66 and 8,811.57

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Solution

The fourth proportional to 12,841.29, 17,719.66 and 8,811.57 is: 12,159.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841.29 : 17,719.66 = 8,811.57 : x
  2. Step 2: Convert to fraction form
    12,841.29/17,719.66 = 8,811.57/x
  3. Step 3: Cross multiply
    12,841.29x = 17,719.66 × 8,811.57
  4. Step 4: Simplify right side
    12,841.29x = 156,138,068.77
  5. Step 5: Solve for x
    x = 156,138,068.77/12,841.29
  6. Step 6: Final answer
    x = 12,159.06

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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.