Home / 8,720.22-12,035.07-5,585.52

Finding the Fourth Proportional to 8,720.22, 12,035.07 and 5,585.52

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Solution

The fourth proportional to 8,720.22, 12,035.07 and 5,585.52 is: 7,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.22 : 12,035.07 = 5,585.52 : x
  2. Step 2: Convert to fraction form
    8,720.22/12,035.07 = 5,585.52/x
  3. Step 3: Cross multiply
    8,720.22x = 12,035.07 × 5,585.52
  4. Step 4: Simplify right side
    8,720.22x = 67,222,124.19
  5. Step 5: Solve for x
    x = 67,222,124.19/8,720.22
  6. Step 6: Final answer
    x = 7,708.76

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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.