Home / 14,841.18-20,455.20-12,940.92

Finding the Fourth Proportional to 14,841.18, 20,455.20 and 12,940.92

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Solution

The fourth proportional to 14,841.18, 20,455.20 and 12,940.92 is: 17,836.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,841.18 : 20,455.20 = 12,940.92 : x
  2. Step 2: Convert to fraction form
    14,841.18/20,455.20 = 12,940.92/x
  3. Step 3: Cross multiply
    14,841.18x = 20,455.20 × 12,940.92
  4. Step 4: Simplify right side
    14,841.18x = 264,709,106.78
  5. Step 5: Solve for x
    x = 264,709,106.78/14,841.18
  6. Step 6: Final answer
    x = 17,836.12

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Double scale
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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.