Home / 10,159.80-15,239.70-3,586.20

Finding the Fourth Proportional to 10,159.80, 15,239.70 and 3,586.20

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Solution

The fourth proportional to 10,159.80, 15,239.70 and 3,586.20 is: 5,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.80 : 15,239.70 = 3,586.20 : x
  2. Step 2: Convert to fraction form
    10,159.80/15,239.70 = 3,586.20/x
  3. Step 3: Cross multiply
    10,159.80x = 15,239.70 × 3,586.20
  4. Step 4: Simplify right side
    10,159.80x = 54,652,612.14
  5. Step 5: Solve for x
    x = 54,652,612.14/10,159.80
  6. Step 6: Final answer
    x = 5,379.30

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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.