Home / 13,248.15-18,278.46-7,941.03

Finding the Fourth Proportional to 13,248.15, 18,278.46 and 7,941.03

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Solution

The fourth proportional to 13,248.15, 18,278.46 and 7,941.03 is: 10,956.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.15 : 18,278.46 = 7,941.03 : x
  2. Step 2: Convert to fraction form
    13,248.15/18,278.46 = 7,941.03/x
  3. Step 3: Cross multiply
    13,248.15x = 18,278.46 × 7,941.03
  4. Step 4: Simplify right side
    13,248.15x = 145,149,799.21
  5. Step 5: Solve for x
    x = 145,149,799.21/13,248.15
  6. Step 6: Final answer
    x = 10,956.23

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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.