Home / 13,302.28-19,917.78-10,423.90

Finding the Fourth Proportional to 13,302.28, 19,917.78 and 10,423.90

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Solution

The fourth proportional to 13,302.28, 19,917.78 and 10,423.90 is: 15,607.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.28 : 19,917.78 = 10,423.90 : x
  2. Step 2: Convert to fraction form
    13,302.28/19,917.78 = 10,423.90/x
  3. Step 3: Cross multiply
    13,302.28x = 19,917.78 × 10,423.90
  4. Step 4: Simplify right side
    13,302.28x = 207,620,946.94
  5. Step 5: Solve for x
    x = 207,620,946.94/13,302.28
  6. Step 6: Final answer
    x = 15,607.92

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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.