Home / 10,159.41-15,239.25-3,139.34

Finding the Fourth Proportional to 10,159.41, 15,239.25 and 3,139.34

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Solution

The fourth proportional to 10,159.41, 15,239.25 and 3,139.34 is: 4,709.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,159.41 : 15,239.25 = 3,139.34 : x
  2. Step 2: Convert to fraction form
    10,159.41/15,239.25 = 3,139.34/x
  3. Step 3: Cross multiply
    10,159.41x = 15,239.25 × 3,139.34
  4. Step 4: Simplify right side
    10,159.41x = 47,841,110.90
  5. Step 5: Solve for x
    x = 47,841,110.90/10,159.41
  6. Step 6: Final answer
    x = 4,709.04

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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.