Home / 10,453.42-15,658.17-8,485.66

Finding the Fourth Proportional to 10,453.42, 15,658.17 and 8,485.66

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Solution

The fourth proportional to 10,453.42, 15,658.17 and 8,485.66 is: 12,710.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,453.42 : 15,658.17 = 8,485.66 : x
  2. Step 2: Convert to fraction form
    10,453.42/15,658.17 = 8,485.66/x
  3. Step 3: Cross multiply
    10,453.42x = 15,658.17 × 8,485.66
  4. Step 4: Simplify right side
    10,453.42x = 132,869,906.84
  5. Step 5: Solve for x
    x = 132,869,906.84/10,453.42
  6. Step 6: Final answer
    x = 12,710.66

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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.