Home / 10,903.30-16,340.55-8,108.08

Finding the Fourth Proportional to 10,903.30, 16,340.55 and 8,108.08

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Solution

The fourth proportional to 10,903.30, 16,340.55 and 8,108.08 is: 12,151.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,903.30 : 16,340.55 = 8,108.08 : x
  2. Step 2: Convert to fraction form
    10,903.30/16,340.55 = 8,108.08/x
  3. Step 3: Cross multiply
    10,903.30x = 16,340.55 × 8,108.08
  4. Step 4: Simplify right side
    10,903.30x = 132,490,486.64
  5. Step 5: Solve for x
    x = 132,490,486.64/10,903.30
  6. Step 6: Final answer
    x = 12,151.41

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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.