Home / 7,512.57-10,367.02-4,155.21

Finding the Fourth Proportional to 7,512.57, 10,367.02 and 4,155.21

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Solution

The fourth proportional to 7,512.57, 10,367.02 and 4,155.21 is: 5,734.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.57 : 10,367.02 = 4,155.21 : x
  2. Step 2: Convert to fraction form
    7,512.57/10,367.02 = 4,155.21/x
  3. Step 3: Cross multiply
    7,512.57x = 10,367.02 × 4,155.21
  4. Step 4: Simplify right side
    7,512.57x = 43,077,145.17
  5. Step 5: Solve for x
    x = 43,077,145.17/7,512.57
  6. Step 6: Final answer
    x = 5,734.01

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Half scale
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Double scale
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Similar ratio
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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.