Home / 11,778.18-16,247.12-7,354.50

Finding the Fourth Proportional to 11,778.18, 16,247.12 and 7,354.50

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Solution

The fourth proportional to 11,778.18, 16,247.12 and 7,354.50 is: 10,144.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,778.18 : 16,247.12 = 7,354.50 : x
  2. Step 2: Convert to fraction form
    11,778.18/16,247.12 = 7,354.50/x
  3. Step 3: Cross multiply
    11,778.18x = 16,247.12 × 7,354.50
  4. Step 4: Simplify right side
    11,778.18x = 119,489,444.04
  5. Step 5: Solve for x
    x = 119,489,444.04/11,778.18
  6. Step 6: Final answer
    x = 10,144.98

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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.