Home / 14,979.12-20,673.12-12,456.91

Finding the Fourth Proportional to 14,979.12, 20,673.12 and 12,456.91

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Solution

The fourth proportional to 14,979.12, 20,673.12 and 12,456.91 is: 17,192.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,979.12 : 20,673.12 = 12,456.91 : x
  2. Step 2: Convert to fraction form
    14,979.12/20,673.12 = 12,456.91/x
  3. Step 3: Cross multiply
    14,979.12x = 20,673.12 × 12,456.91
  4. Step 4: Simplify right side
    14,979.12x = 257,523,195.26
  5. Step 5: Solve for x
    x = 257,523,195.26/14,979.12
  6. Step 6: Final answer
    x = 17,192.14

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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.