Home / 15,884.16-23,839.35-7,988.92

Finding the Fourth Proportional to 15,884.16, 23,839.35 and 7,988.92

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Solution

The fourth proportional to 15,884.16, 23,839.35 and 7,988.92 is: 11,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,884.16 : 23,839.35 = 7,988.92 : x
  2. Step 2: Convert to fraction form
    15,884.16/23,839.35 = 7,988.92/x
  3. Step 3: Cross multiply
    15,884.16x = 23,839.35 × 7,988.92
  4. Step 4: Simplify right side
    15,884.16x = 190,450,660.00
  5. Step 5: Solve for x
    x = 190,450,660.00/15,884.16
  6. Step 6: Final answer
    x = 11,989.97

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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.