Home / 7,512.16-10,366.96-4,155.20

Finding the Fourth Proportional to 7,512.16, 10,366.96 and 4,155.20

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Solution

The fourth proportional to 7,512.16, 10,366.96 and 4,155.20 is: 5,734.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.16 : 10,366.96 = 4,155.20 : x
  2. Step 2: Convert to fraction form
    7,512.16/10,366.96 = 4,155.20/x
  3. Step 3: Cross multiply
    7,512.16x = 10,366.96 × 4,155.20
  4. Step 4: Simplify right side
    7,512.16x = 43,076,792.19
  5. Step 5: Solve for x
    x = 43,076,792.19/7,512.16
  6. Step 6: Final answer
    x = 5,734.28

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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.