Home / 13,255.32-18,292.80-7,287.18

Finding the Fourth Proportional to 13,255.32, 18,292.80 and 7,287.18

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Solution

The fourth proportional to 13,255.32, 18,292.80 and 7,287.18 is: 10,056.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.32 : 18,292.80 = 7,287.18 : x
  2. Step 2: Convert to fraction form
    13,255.32/18,292.80 = 7,287.18/x
  3. Step 3: Cross multiply
    13,255.32x = 18,292.80 × 7,287.18
  4. Step 4: Simplify right side
    13,255.32x = 133,302,926.30
  5. Step 5: Solve for x
    x = 133,302,926.30/13,255.32
  6. Step 6: Final answer
    x = 10,056.56

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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.