Home / 14,981.13-20,675.88-12,458.91

Finding the Fourth Proportional to 14,981.13, 20,675.88 and 12,458.91

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Solution

The fourth proportional to 14,981.13, 20,675.88 and 12,458.91 is: 17,194.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.13 : 20,675.88 = 12,458.91 : x
  2. Step 2: Convert to fraction form
    14,981.13/20,675.88 = 12,458.91/x
  3. Step 3: Cross multiply
    14,981.13x = 20,675.88 × 12,458.91
  4. Step 4: Simplify right side
    14,981.13x = 257,598,928.09
  5. Step 5: Solve for x
    x = 257,598,928.09/14,981.13
  6. Step 6: Final answer
    x = 17,194.89

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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.