Home / 13,134.67-18,125.66-7,166.34

Finding the Fourth Proportional to 13,134.67, 18,125.66 and 7,166.34

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Solution

The fourth proportional to 13,134.67, 18,125.66 and 7,166.34 is: 9,889.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.67 : 18,125.66 = 7,166.34 : x
  2. Step 2: Convert to fraction form
    13,134.67/18,125.66 = 7,166.34/x
  3. Step 3: Cross multiply
    13,134.67x = 18,125.66 × 7,166.34
  4. Step 4: Simplify right side
    13,134.67x = 129,894,642.28
  5. Step 5: Solve for x
    x = 129,894,642.28/13,134.67
  6. Step 6: Final answer
    x = 9,889.45

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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.