Home / 7,512.81-10,366.98-4,155.55

Finding the Fourth Proportional to 7,512.81, 10,366.98 and 4,155.55

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Solution

The fourth proportional to 7,512.81, 10,366.98 and 4,155.55 is: 5,734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.81 : 10,366.98 = 4,155.55 : x
  2. Step 2: Convert to fraction form
    7,512.81/10,366.98 = 4,155.55/x
  3. Step 3: Cross multiply
    7,512.81x = 10,366.98 × 4,155.55
  4. Step 4: Simplify right side
    7,512.81x = 43,080,431.13
  5. Step 5: Solve for x
    x = 43,080,431.13/7,512.81
  6. Step 6: Final answer
    x = 5,734.27

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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.