Home / 10,510.05-15,765.01-3,114.55

Finding the Fourth Proportional to 10,510.05, 15,765.01 and 3,114.55

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Solution

The fourth proportional to 10,510.05, 15,765.01 and 3,114.55 is: 4,671.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,510.05 : 15,765.01 = 3,114.55 : x
  2. Step 2: Convert to fraction form
    10,510.05/15,765.01 = 3,114.55/x
  3. Step 3: Cross multiply
    10,510.05x = 15,765.01 × 3,114.55
  4. Step 4: Simplify right side
    10,510.05x = 49,100,911.90
  5. Step 5: Solve for x
    x = 49,100,911.90/10,510.05
  6. Step 6: Final answer
    x = 4,671.81

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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.