Home / 12,132.11-16,751.43-11,938.35

Finding the Fourth Proportional to 12,132.11, 16,751.43 and 11,938.35

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Solution

The fourth proportional to 12,132.11, 16,751.43 and 11,938.35 is: 16,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.11 : 16,751.43 = 11,938.35 : x
  2. Step 2: Convert to fraction form
    12,132.11/16,751.43 = 11,938.35/x
  3. Step 3: Cross multiply
    12,132.11x = 16,751.43 × 11,938.35
  4. Step 4: Simplify right side
    12,132.11x = 199,984,434.34
  5. Step 5: Solve for x
    x = 199,984,434.34/12,132.11
  6. Step 6: Final answer
    x = 16,483.90

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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.