Home / 18,974.31-28,423.36-9,457.93

Finding the Fourth Proportional to 18,974.31, 28,423.36 and 9,457.93

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Solution

The fourth proportional to 18,974.31, 28,423.36 and 9,457.93 is: 14,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.31 : 28,423.36 = 9,457.93 : x
  2. Step 2: Convert to fraction form
    18,974.31/28,423.36 = 9,457.93/x
  3. Step 3: Cross multiply
    18,974.31x = 28,423.36 × 9,457.93
  4. Step 4: Simplify right side
    18,974.31x = 268,826,149.24
  5. Step 5: Solve for x
    x = 268,826,149.24/18,974.31
  6. Step 6: Final answer
    x = 14,167.90

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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.