Home / 7,500.20-10,350.90-4,143.32

Finding the Fourth Proportional to 7,500.20, 10,350.90 and 4,143.32

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Solution

The fourth proportional to 7,500.20, 10,350.90 and 4,143.32 is: 5,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,500.20 : 10,350.90 = 4,143.32 : x
  2. Step 2: Convert to fraction form
    7,500.20/10,350.90 = 4,143.32/x
  3. Step 3: Cross multiply
    7,500.20x = 10,350.90 × 4,143.32
  4. Step 4: Simplify right side
    7,500.20x = 42,887,090.99
  5. Step 5: Solve for x
    x = 42,887,090.99/7,500.20
  6. Step 6: Final answer
    x = 5,718.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.