Home / 13,925.88-20,887.29-5,040.90

Finding the Fourth Proportional to 13,925.88, 20,887.29 and 5,040.90

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Solution

The fourth proportional to 13,925.88, 20,887.29 and 5,040.90 is: 7,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.88 : 20,887.29 = 5,040.90 : x
  2. Step 2: Convert to fraction form
    13,925.88/20,887.29 = 5,040.90/x
  3. Step 3: Cross multiply
    13,925.88x = 20,887.29 × 5,040.90
  4. Step 4: Simplify right side
    13,925.88x = 105,290,740.16
  5. Step 5: Solve for x
    x = 105,290,740.16/13,925.88
  6. Step 6: Final answer
    x = 7,560.80

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1.5x scale

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.