Home / 13,150.34-18,146.66-7,180.79

Finding the Fourth Proportional to 13,150.34, 18,146.66 and 7,180.79

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Solution

The fourth proportional to 13,150.34, 18,146.66 and 7,180.79 is: 9,909.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150.34 : 18,146.66 = 7,180.79 : x
  2. Step 2: Convert to fraction form
    13,150.34/18,146.66 = 7,180.79/x
  3. Step 3: Cross multiply
    13,150.34x = 18,146.66 × 7,180.79
  4. Step 4: Simplify right side
    13,150.34x = 130,307,228.02
  5. Step 5: Solve for x
    x = 130,307,228.02/13,150.34
  6. Step 6: Final answer
    x = 9,909.04

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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.