Home / 15,112.08-20,861.76-10,084.80

Finding the Fourth Proportional to 15,112.08, 20,861.76 and 10,084.80

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Solution

The fourth proportional to 15,112.08, 20,861.76 and 10,084.80 is: 13,921.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112.08 : 20,861.76 = 10,084.80 : x
  2. Step 2: Convert to fraction form
    15,112.08/20,861.76 = 10,084.80/x
  3. Step 3: Cross multiply
    15,112.08x = 20,861.76 × 10,084.80
  4. Step 4: Simplify right side
    15,112.08x = 210,386,677.25
  5. Step 5: Solve for x
    x = 210,386,677.25/15,112.08
  6. Step 6: Final answer
    x = 13,921.76

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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.