Home / 14,099.10-21,148.65-12,867.90

Finding the Fourth Proportional to 14,099.10, 21,148.65 and 12,867.90

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Solution

The fourth proportional to 14,099.10, 21,148.65 and 12,867.90 is: 19,301.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.10 : 21,148.65 = 12,867.90 : x
  2. Step 2: Convert to fraction form
    14,099.10/21,148.65 = 12,867.90/x
  3. Step 3: Cross multiply
    14,099.10x = 21,148.65 × 12,867.90
  4. Step 4: Simplify right side
    14,099.10x = 272,138,713.34
  5. Step 5: Solve for x
    x = 272,138,713.34/14,099.10
  6. Step 6: Final answer
    x = 19,301.85

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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.