Home / 10,512.18-15,765.54-3,114.65

Finding the Fourth Proportional to 10,512.18, 15,765.54 and 3,114.65

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Solution

The fourth proportional to 10,512.18, 15,765.54 and 3,114.65 is: 4,671.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.18 : 15,765.54 = 3,114.65 : x
  2. Step 2: Convert to fraction form
    10,512.18/15,765.54 = 3,114.65/x
  3. Step 3: Cross multiply
    10,512.18x = 15,765.54 × 3,114.65
  4. Step 4: Simplify right side
    10,512.18x = 49,104,166.89
  5. Step 5: Solve for x
    x = 49,104,166.89/10,512.18
  6. Step 6: Final answer
    x = 4,671.17

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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.