Home / 18,478.12-25,500.98-10,521.04

Finding the Fourth Proportional to 18,478.12, 25,500.98 and 10,521.04

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Solution

The fourth proportional to 18,478.12, 25,500.98 and 10,521.04 is: 14,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.12 : 25,500.98 = 10,521.04 : x
  2. Step 2: Convert to fraction form
    18,478.12/25,500.98 = 10,521.04/x
  3. Step 3: Cross multiply
    18,478.12x = 25,500.98 × 10,521.04
  4. Step 4: Simplify right side
    18,478.12x = 268,296,830.62
  5. Step 5: Solve for x
    x = 268,296,830.62/18,478.12
  6. Step 6: Final answer
    x = 14,519.70

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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.