Home / 16,878.78-23,292.42-9,325.10

Finding the Fourth Proportional to 16,878.78, 23,292.42 and 9,325.10

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Solution

The fourth proportional to 16,878.78, 23,292.42 and 9,325.10 is: 12,868.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.78 : 23,292.42 = 9,325.10 : x
  2. Step 2: Convert to fraction form
    16,878.78/23,292.42 = 9,325.10/x
  3. Step 3: Cross multiply
    16,878.78x = 23,292.42 × 9,325.10
  4. Step 4: Simplify right side
    16,878.78x = 217,204,145.74
  5. Step 5: Solve for x
    x = 217,204,145.74/16,878.78
  6. Step 6: Final answer
    x = 12,868.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.