Home / 13,264.40-18,306.32-7,960.56

Finding the Fourth Proportional to 13,264.40, 18,306.32 and 7,960.56

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Solution

The fourth proportional to 13,264.40, 18,306.32 and 7,960.56 is: 10,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,264.40 : 18,306.32 = 7,960.56 : x
  2. Step 2: Convert to fraction form
    13,264.40/18,306.32 = 7,960.56/x
  3. Step 3: Cross multiply
    13,264.40x = 18,306.32 × 7,960.56
  4. Step 4: Simplify right side
    13,264.40x = 145,728,558.74
  5. Step 5: Solve for x
    x = 145,728,558.74/13,264.40
  6. Step 6: Final answer
    x = 10,986.44

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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.