Home / 14,591.15-20,117.07-11,191.98

Finding the Fourth Proportional to 14,591.15, 20,117.07 and 11,191.98

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Solution

The fourth proportional to 14,591.15, 20,117.07 and 11,191.98 is: 15,430.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,591.15 : 20,117.07 = 11,191.98 : x
  2. Step 2: Convert to fraction form
    14,591.15/20,117.07 = 11,191.98/x
  3. Step 3: Cross multiply
    14,591.15x = 20,117.07 × 11,191.98
  4. Step 4: Simplify right side
    14,591.15x = 225,149,845.10
  5. Step 5: Solve for x
    x = 225,149,845.10/14,591.15
  6. Step 6: Final answer
    x = 15,430.58

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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.