Home / 10,159.49-15,242.70-5,479.94

Finding the Fourth Proportional to 10,159.49, 15,242.70 and 5,479.94

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Solution

The fourth proportional to 10,159.49, 15,242.70 and 5,479.94 is: 8,221.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.49 : 15,242.70 = 5,479.94 : x
  2. Step 2: Convert to fraction form
    10,159.49/15,242.70 = 5,479.94/x
  3. Step 3: Cross multiply
    10,159.49x = 15,242.70 × 5,479.94
  4. Step 4: Simplify right side
    10,159.49x = 83,529,081.44
  5. Step 5: Solve for x
    x = 83,529,081.44/10,159.49
  6. Step 6: Final answer
    x = 8,221.78

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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.