Home / 13,124.39-19,689.12-4,242.11

Finding the Fourth Proportional to 13,124.39, 19,689.12 and 4,242.11

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Solution

The fourth proportional to 13,124.39, 19,689.12 and 4,242.11 is: 6,363.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.39 : 19,689.12 = 4,242.11 : x
  2. Step 2: Convert to fraction form
    13,124.39/19,689.12 = 4,242.11/x
  3. Step 3: Cross multiply
    13,124.39x = 19,689.12 × 4,242.11
  4. Step 4: Simplify right side
    13,124.39x = 83,523,412.84
  5. Step 5: Solve for x
    x = 83,523,412.84/13,124.39
  6. Step 6: Final answer
    x = 6,363.98

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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.