Home / 12,701.30-17,561.21-11,124.86

Finding the Fourth Proportional to 12,701.30, 17,561.21 and 11,124.86

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Solution

The fourth proportional to 12,701.30, 17,561.21 and 11,124.86 is: 15,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,701.30 : 17,561.21 = 11,124.86 : x
  2. Step 2: Convert to fraction form
    12,701.30/17,561.21 = 11,124.86/x
  3. Step 3: Cross multiply
    12,701.30x = 17,561.21 × 11,124.86
  4. Step 4: Simplify right side
    12,701.30x = 195,365,859.25
  5. Step 5: Solve for x
    x = 195,365,859.25/12,701.30
  6. Step 6: Final answer
    x = 15,381.57

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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.