Home / 13,257.06-18,294.01-7,287.76

Finding the Fourth Proportional to 13,257.06, 18,294.01 and 7,287.76

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Solution

The fourth proportional to 13,257.06, 18,294.01 and 7,287.76 is: 10,056.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.06 : 18,294.01 = 7,287.76 : x
  2. Step 2: Convert to fraction form
    13,257.06/18,294.01 = 7,287.76/x
  3. Step 3: Cross multiply
    13,257.06x = 18,294.01 × 7,287.76
  4. Step 4: Simplify right side
    13,257.06x = 133,322,354.32
  5. Step 5: Solve for x
    x = 133,322,354.32/13,257.06
  6. Step 6: Final answer
    x = 10,056.71

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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.