Home / 13,432.48-18,537.01-8,127.30

Finding the Fourth Proportional to 13,432.48, 18,537.01 and 8,127.30

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Solution

The fourth proportional to 13,432.48, 18,537.01 and 8,127.30 is: 11,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.48 : 18,537.01 = 8,127.30 : x
  2. Step 2: Convert to fraction form
    13,432.48/18,537.01 = 8,127.30/x
  3. Step 3: Cross multiply
    13,432.48x = 18,537.01 × 8,127.30
  4. Step 4: Simplify right side
    13,432.48x = 150,655,890.57
  5. Step 5: Solve for x
    x = 150,655,890.57/13,432.48
  6. Step 6: Final answer
    x = 11,215.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.