Home / 13,242.60-18,278.46-7,580.52

Finding the Fourth Proportional to 13,242.60, 18,278.46 and 7,580.52

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Solution

The fourth proportional to 13,242.60, 18,278.46 and 7,580.52 is: 10,463.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.60 : 18,278.46 = 7,580.52 : x
  2. Step 2: Convert to fraction form
    13,242.60/18,278.46 = 7,580.52/x
  3. Step 3: Cross multiply
    13,242.60x = 18,278.46 × 7,580.52
  4. Step 4: Simplify right side
    13,242.60x = 138,560,231.60
  5. Step 5: Solve for x
    x = 138,560,231.60/13,242.60
  6. Step 6: Final answer
    x = 10,463.22

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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.