Home / 12,202.16-16,839.02-7,721.24

Finding the Fourth Proportional to 12,202.16, 16,839.02 and 7,721.24

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Solution

The fourth proportional to 12,202.16, 16,839.02 and 7,721.24 is: 10,655.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,202.16 : 16,839.02 = 7,721.24 : x
  2. Step 2: Convert to fraction form
    12,202.16/16,839.02 = 7,721.24/x
  3. Step 3: Cross multiply
    12,202.16x = 16,839.02 × 7,721.24
  4. Step 4: Simplify right side
    12,202.16x = 130,018,049.89
  5. Step 5: Solve for x
    x = 130,018,049.89/12,202.16
  6. Step 6: Final answer
    x = 10,655.34

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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.