Home / 16,885.53-25,312.81-6,489.45

Finding the Fourth Proportional to 16,885.53, 25,312.81 and 6,489.45

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Solution

The fourth proportional to 16,885.53, 25,312.81 and 6,489.45 is: 9,728.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,885.53 : 25,312.81 = 6,489.45 : x
  2. Step 2: Convert to fraction form
    16,885.53/25,312.81 = 6,489.45/x
  3. Step 3: Cross multiply
    16,885.53x = 25,312.81 × 6,489.45
  4. Step 4: Simplify right side
    16,885.53x = 164,266,214.85
  5. Step 5: Solve for x
    x = 164,266,214.85/16,885.53
  6. Step 6: Final answer
    x = 9,728.22

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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.