Home / 10,282.60-14,165.67-8,478.33

Finding the Fourth Proportional to 10,282.60, 14,165.67 and 8,478.33

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Solution

The fourth proportional to 10,282.60, 14,165.67 and 8,478.33 is: 11,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282.60 : 14,165.67 = 8,478.33 : x
  2. Step 2: Convert to fraction form
    10,282.60/14,165.67 = 8,478.33/x
  3. Step 3: Cross multiply
    10,282.60x = 14,165.67 × 8,478.33
  4. Step 4: Simplify right side
    10,282.60x = 120,101,224.93
  5. Step 5: Solve for x
    x = 120,101,224.93/10,282.60
  6. Step 6: Final answer
    x = 11,680.04

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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.