Home / 10,902.15-16,357.85-4,243.30

Finding the Fourth Proportional to 10,902.15, 16,357.85 and 4,243.30

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Solution

The fourth proportional to 10,902.15, 16,357.85 and 4,243.30 is: 6,366.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,902.15 : 16,357.85 = 4,243.30 : x
  2. Step 2: Convert to fraction form
    10,902.15/16,357.85 = 4,243.30/x
  3. Step 3: Cross multiply
    10,902.15x = 16,357.85 × 4,243.30
  4. Step 4: Simplify right side
    10,902.15x = 69,411,264.91
  5. Step 5: Solve for x
    x = 69,411,264.91/10,902.15
  6. Step 6: Final answer
    x = 6,366.75

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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.