Home / 8,480.16-12,720.24-2,637.12

Finding the Fourth Proportional to 8,480.16, 12,720.24 and 2,637.12

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Solution

The fourth proportional to 8,480.16, 12,720.24 and 2,637.12 is: 3,955.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.16 : 12,720.24 = 2,637.12 : x
  2. Step 2: Convert to fraction form
    8,480.16/12,720.24 = 2,637.12/x
  3. Step 3: Cross multiply
    8,480.16x = 12,720.24 × 2,637.12
  4. Step 4: Simplify right side
    8,480.16x = 33,544,799.31
  5. Step 5: Solve for x
    x = 33,544,799.31/8,480.16
  6. Step 6: Final answer
    x = 3,955.68

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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.