Home / 13,010.15-17,947.24-7,975.55

Finding the Fourth Proportional to 13,010.15, 17,947.24 and 7,975.55

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Solution

The fourth proportional to 13,010.15, 17,947.24 and 7,975.55 is: 11,002.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.15 : 17,947.24 = 7,975.55 : x
  2. Step 2: Convert to fraction form
    13,010.15/17,947.24 = 7,975.55/x
  3. Step 3: Cross multiply
    13,010.15x = 17,947.24 × 7,975.55
  4. Step 4: Simplify right side
    13,010.15x = 143,139,000.31
  5. Step 5: Solve for x
    x = 143,139,000.31/13,010.15
  6. Step 6: Final answer
    x = 11,002.11

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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.