Home / 14,003.56-20,999.15-7,428.24

Finding the Fourth Proportional to 14,003.56, 20,999.15 and 7,428.24

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Solution

The fourth proportional to 14,003.56, 20,999.15 and 7,428.24 is: 11,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,003.56 : 20,999.15 = 7,428.24 : x
  2. Step 2: Convert to fraction form
    14,003.56/20,999.15 = 7,428.24/x
  3. Step 3: Cross multiply
    14,003.56x = 20,999.15 × 7,428.24
  4. Step 4: Simplify right side
    14,003.56x = 155,986,726.00
  5. Step 5: Solve for x
    x = 155,986,726.00/14,003.56
  6. Step 6: Final answer
    x = 11,139.08

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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.