Home / 13,937.23-20,871.75-12,587.86

Finding the Fourth Proportional to 13,937.23, 20,871.75 and 12,587.86

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Solution

The fourth proportional to 13,937.23, 20,871.75 and 12,587.86 is: 18,851.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.23 : 20,871.75 = 12,587.86 : x
  2. Step 2: Convert to fraction form
    13,937.23/20,871.75 = 12,587.86/x
  3. Step 3: Cross multiply
    13,937.23x = 20,871.75 × 12,587.86
  4. Step 4: Simplify right side
    13,937.23x = 262,730,562.60
  5. Step 5: Solve for x
    x = 262,730,562.60/13,937.23
  6. Step 6: Final answer
    x = 18,851.00

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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.