Home / 18,607.12-25,679.48-10,647.76

Finding the Fourth Proportional to 18,607.12, 25,679.48 and 10,647.76

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Solution

The fourth proportional to 18,607.12, 25,679.48 and 10,647.76 is: 14,694.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.12 : 25,679.48 = 10,647.76 : x
  2. Step 2: Convert to fraction form
    18,607.12/25,679.48 = 10,647.76/x
  3. Step 3: Cross multiply
    18,607.12x = 25,679.48 × 10,647.76
  4. Step 4: Simplify right side
    18,607.12x = 273,428,939.96
  5. Step 5: Solve for x
    x = 273,428,939.96/18,607.12
  6. Step 6: Final answer
    x = 14,694.86

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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.