Home / 11,153.18-16,715.19-8,357.88

Finding the Fourth Proportional to 11,153.18, 16,715.19 and 8,357.88

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Solution

The fourth proportional to 11,153.18, 16,715.19 and 8,357.88 is: 12,525.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.18 : 16,715.19 = 8,357.88 : x
  2. Step 2: Convert to fraction form
    11,153.18/16,715.19 = 8,357.88/x
  3. Step 3: Cross multiply
    11,153.18x = 16,715.19 × 8,357.88
  4. Step 4: Simplify right side
    11,153.18x = 139,703,552.20
  5. Step 5: Solve for x
    x = 139,703,552.20/11,153.18
  6. Step 6: Final answer
    x = 12,525.89

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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.