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Finding the Fourth Proportional to 10,500.49, 15,751.50 and 3,480.22

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Solution

The fourth proportional to 10,500.49, 15,751.50 and 3,480.22 is: 5,220.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.49 : 15,751.50 = 3,480.22 : x
  2. Step 2: Convert to fraction form
    10,500.49/15,751.50 = 3,480.22/x
  3. Step 3: Cross multiply
    10,500.49x = 15,751.50 × 3,480.22
  4. Step 4: Simplify right side
    10,500.49x = 54,818,685.33
  5. Step 5: Solve for x
    x = 54,818,685.33/10,500.49
  6. Step 6: Final answer
    x = 5,220.58

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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.