Home / 15,423.93-23,139.77-8,402.04

Finding the Fourth Proportional to 15,423.93, 23,139.77 and 8,402.04

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Solution

The fourth proportional to 15,423.93, 23,139.77 and 8,402.04 is: 12,605.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.93 : 23,139.77 = 8,402.04 : x
  2. Step 2: Convert to fraction form
    15,423.93/23,139.77 = 8,402.04/x
  3. Step 3: Cross multiply
    15,423.93x = 23,139.77 × 8,402.04
  4. Step 4: Simplify right side
    15,423.93x = 194,421,231.12
  5. Step 5: Solve for x
    x = 194,421,231.12/15,423.93
  6. Step 6: Final answer
    x = 12,605.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.