Home / 12,210.17-16,845.27-7,966.22

Finding the Fourth Proportional to 12,210.17, 16,845.27 and 7,966.22

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Solution

The fourth proportional to 12,210.17, 16,845.27 and 7,966.22 is: 10,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.17 : 16,845.27 = 7,966.22 : x
  2. Step 2: Convert to fraction form
    12,210.17/16,845.27 = 7,966.22/x
  3. Step 3: Cross multiply
    12,210.17x = 16,845.27 × 7,966.22
  4. Step 4: Simplify right side
    12,210.17x = 134,193,126.78
  5. Step 5: Solve for x
    x = 134,193,126.78/12,210.17
  6. Step 6: Final answer
    x = 10,990.28

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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.