Home / 16,885.40-25,312.62-6,489.32

Finding the Fourth Proportional to 16,885.40, 25,312.62 and 6,489.32

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Solution

The fourth proportional to 16,885.40, 25,312.62 and 6,489.32 is: 9,728.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.40 : 25,312.62 = 6,489.32 : x
  2. Step 2: Convert to fraction form
    16,885.40/25,312.62 = 6,489.32/x
  3. Step 3: Cross multiply
    16,885.40x = 25,312.62 × 6,489.32
  4. Step 4: Simplify right side
    16,885.40x = 164,261,691.22
  5. Step 5: Solve for x
    x = 164,261,691.22/16,885.40
  6. Step 6: Final answer
    x = 9,728.03

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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.