Home / 10,187.85-15,212.80-8,084.24

Finding the Fourth Proportional to 10,187.85, 15,212.80 and 8,084.24

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Solution

The fourth proportional to 10,187.85, 15,212.80 and 8,084.24 is: 12,071.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,187.85 : 15,212.80 = 8,084.24 : x
  2. Step 2: Convert to fraction form
    10,187.85/15,212.80 = 8,084.24/x
  3. Step 3: Cross multiply
    10,187.85x = 15,212.80 × 8,084.24
  4. Step 4: Simplify right side
    10,187.85x = 122,983,926.27
  5. Step 5: Solve for x
    x = 122,983,926.27/10,187.85
  6. Step 6: Final answer
    x = 12,071.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.