Home / 12,834.18-17,712.09-7,170.06

Finding the Fourth Proportional to 12,834.18, 17,712.09 and 7,170.06

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Solution

The fourth proportional to 12,834.18, 17,712.09 and 7,170.06 is: 9,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,834.18 : 17,712.09 = 7,170.06 : x
  2. Step 2: Convert to fraction form
    12,834.18/17,712.09 = 7,170.06/x
  3. Step 3: Cross multiply
    12,834.18x = 17,712.09 × 7,170.06
  4. Step 4: Simplify right side
    12,834.18x = 126,996,748.03
  5. Step 5: Solve for x
    x = 126,996,748.03/12,834.18
  6. Step 6: Final answer
    x = 9,895.20

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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.