Home / 13,560.00-20,343.07-7,319.88

Finding the Fourth Proportional to 13,560.00, 20,343.07 and 7,319.88

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Solution

The fourth proportional to 13,560.00, 20,343.07 and 7,319.88 is: 10,981.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.00 : 20,343.07 = 7,319.88 : x
  2. Step 2: Convert to fraction form
    13,560.00/20,343.07 = 7,319.88/x
  3. Step 3: Cross multiply
    13,560.00x = 20,343.07 × 7,319.88
  4. Step 4: Simplify right side
    13,560.00x = 148,908,918.18
  5. Step 5: Solve for x
    x = 148,908,918.18/13,560.00
  6. Step 6: Final answer
    x = 10,981.48

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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.