Home / 16,885.28-25,312.43-6,489.20

Finding the Fourth Proportional to 16,885.28, 25,312.43 and 6,489.20

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Solution

The fourth proportional to 16,885.28, 25,312.43 and 6,489.20 is: 9,727.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.28 : 25,312.43 = 6,489.20 : x
  2. Step 2: Convert to fraction form
    16,885.28/25,312.43 = 6,489.20/x
  3. Step 3: Cross multiply
    16,885.28x = 25,312.43 × 6,489.20
  4. Step 4: Simplify right side
    16,885.28x = 164,257,261.75
  5. Step 5: Solve for x
    x = 164,257,261.75/16,885.28
  6. Step 6: Final answer
    x = 9,727.84

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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.