Home / 10,247.68-15,286.61-9,945.55

Finding the Fourth Proportional to 10,247.68, 15,286.61 and 9,945.55

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Solution

The fourth proportional to 10,247.68, 15,286.61 and 9,945.55 is: 14,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,247.68 : 15,286.61 = 9,945.55 : x
  2. Step 2: Convert to fraction form
    10,247.68/15,286.61 = 9,945.55/x
  3. Step 3: Cross multiply
    10,247.68x = 15,286.61 × 9,945.55
  4. Step 4: Simplify right side
    10,247.68x = 152,033,656.14
  5. Step 5: Solve for x
    x = 152,033,656.14/10,247.68
  6. Step 6: Final answer
    x = 14,835.91

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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.