Home / 10,083.60-15,131.28-4,239.76

Finding the Fourth Proportional to 10,083.60, 15,131.28 and 4,239.76

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Solution

The fourth proportional to 10,083.60, 15,131.28 and 4,239.76 is: 6,362.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,083.60 : 15,131.28 = 4,239.76 : x
  2. Step 2: Convert to fraction form
    10,083.60/15,131.28 = 4,239.76/x
  3. Step 3: Cross multiply
    10,083.60x = 15,131.28 × 4,239.76
  4. Step 4: Simplify right side
    10,083.60x = 64,152,995.69
  5. Step 5: Solve for x
    x = 64,152,995.69/10,083.60
  6. Step 6: Final answer
    x = 6,362.11

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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.