Home / 13,672.80-18,876.24-9,430.02

Finding the Fourth Proportional to 13,672.80, 18,876.24 and 9,430.02

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Solution

The fourth proportional to 13,672.80, 18,876.24 and 9,430.02 is: 13,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.80 : 18,876.24 = 9,430.02 : x
  2. Step 2: Convert to fraction form
    13,672.80/18,876.24 = 9,430.02/x
  3. Step 3: Cross multiply
    13,672.80x = 18,876.24 × 9,430.02
  4. Step 4: Simplify right side
    13,672.80x = 178,003,320.72
  5. Step 5: Solve for x
    x = 178,003,320.72/13,672.80
  6. Step 6: Final answer
    x = 13,018.79

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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.