Home / 7,515.61-11,275.26-2,585.32

Finding the Fourth Proportional to 7,515.61, 11,275.26 and 2,585.32

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Solution

The fourth proportional to 7,515.61, 11,275.26 and 2,585.32 is: 3,878.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.61 : 11,275.26 = 2,585.32 : x
  2. Step 2: Convert to fraction form
    7,515.61/11,275.26 = 2,585.32/x
  3. Step 3: Cross multiply
    7,515.61x = 11,275.26 × 2,585.32
  4. Step 4: Simplify right side
    7,515.61x = 29,150,155.18
  5. Step 5: Solve for x
    x = 29,150,155.18/7,515.61
  6. Step 6: Final answer
    x = 3,878.61

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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.