Home / 12,572.61-18,862.43-3,807.60

Finding the Fourth Proportional to 12,572.61, 18,862.43 and 3,807.60

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Solution

The fourth proportional to 12,572.61, 18,862.43 and 3,807.60 is: 5,712.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.61 : 18,862.43 = 3,807.60 : x
  2. Step 2: Convert to fraction form
    12,572.61/18,862.43 = 3,807.60/x
  3. Step 3: Cross multiply
    12,572.61x = 18,862.43 × 3,807.60
  4. Step 4: Simplify right side
    12,572.61x = 71,820,569.43
  5. Step 5: Solve for x
    x = 71,820,569.43/12,572.61
  6. Step 6: Final answer
    x = 5,712.46

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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.