Home / 12,488.03-18,715.90-9,343.36

Finding the Fourth Proportional to 12,488.03, 18,715.90 and 9,343.36

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Solution

The fourth proportional to 12,488.03, 18,715.90 and 9,343.36 is: 14,002.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.03 : 18,715.90 = 9,343.36 : x
  2. Step 2: Convert to fraction form
    12,488.03/18,715.90 = 9,343.36/x
  3. Step 3: Cross multiply
    12,488.03x = 18,715.90 × 9,343.36
  4. Step 4: Simplify right side
    12,488.03x = 174,869,422.16
  5. Step 5: Solve for x
    x = 174,869,422.16/12,488.03
  6. Step 6: Final answer
    x = 14,002.96

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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.