Home / 13,134.11-18,125.01-7,166.10

Finding the Fourth Proportional to 13,134.11, 18,125.01 and 7,166.10

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Solution

The fourth proportional to 13,134.11, 18,125.01 and 7,166.10 is: 9,889.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.11 : 18,125.01 = 7,166.10 : x
  2. Step 2: Convert to fraction form
    13,134.11/18,125.01 = 7,166.10/x
  3. Step 3: Cross multiply
    13,134.11x = 18,125.01 × 7,166.10
  4. Step 4: Simplify right side
    13,134.11x = 129,885,634.16
  5. Step 5: Solve for x
    x = 129,885,634.16/13,134.11
  6. Step 6: Final answer
    x = 9,889.18

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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.