Home / 7,015.22-10,512.80-5,151.72

Finding the Fourth Proportional to 7,015.22, 10,512.80 and 5,151.72

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Solution

The fourth proportional to 7,015.22, 10,512.80 and 5,151.72 is: 7,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.22 : 10,512.80 = 5,151.72 : x
  2. Step 2: Convert to fraction form
    7,015.22/10,512.80 = 5,151.72/x
  3. Step 3: Cross multiply
    7,015.22x = 10,512.80 × 5,151.72
  4. Step 4: Simplify right side
    7,015.22x = 54,159,002.02
  5. Step 5: Solve for x
    x = 54,159,002.02/7,015.22
  6. Step 6: Final answer
    x = 7,720.21

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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.