Home / 7,564.20-10,438.77-4,207.15

Finding the Fourth Proportional to 7,564.20, 10,438.77 and 4,207.15

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Solution

The fourth proportional to 7,564.20, 10,438.77 and 4,207.15 is: 5,805.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,564.20 : 10,438.77 = 4,207.15 : x
  2. Step 2: Convert to fraction form
    7,564.20/10,438.77 = 4,207.15/x
  3. Step 3: Cross multiply
    7,564.20x = 10,438.77 × 4,207.15
  4. Step 4: Simplify right side
    7,564.20x = 43,917,471.21
  5. Step 5: Solve for x
    x = 43,917,471.21/7,564.20
  6. Step 6: Final answer
    x = 5,805.96

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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.