Home / 15,245.18-21,037.32-8,529.66

Finding the Fourth Proportional to 15,245.18, 21,037.32 and 8,529.66

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Solution

The fourth proportional to 15,245.18, 21,037.32 and 8,529.66 is: 11,770.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,245.18 : 21,037.32 = 8,529.66 : x
  2. Step 2: Convert to fraction form
    15,245.18/21,037.32 = 8,529.66/x
  3. Step 3: Cross multiply
    15,245.18x = 21,037.32 × 8,529.66
  4. Step 4: Simplify right side
    15,245.18x = 179,441,186.91
  5. Step 5: Solve for x
    x = 179,441,186.91/15,245.18
  6. Step 6: Final answer
    x = 11,770.36

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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.