Home / 16,987.44-25,471.56-6,989.40

Finding the Fourth Proportional to 16,987.44, 25,471.56 and 6,989.40

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Solution

The fourth proportional to 16,987.44, 25,471.56 and 6,989.40 is: 10,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,987.44 : 25,471.56 = 6,989.40 : x
  2. Step 2: Convert to fraction form
    16,987.44/25,471.56 = 6,989.40/x
  3. Step 3: Cross multiply
    16,987.44x = 25,471.56 × 6,989.40
  4. Step 4: Simplify right side
    16,987.44x = 178,030,921.46
  5. Step 5: Solve for x
    x = 178,030,921.46/16,987.44
  6. Step 6: Final answer
    x = 10,480.15

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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.