Home / 18,603.29-25,679.27-12,317.69

Finding the Fourth Proportional to 18,603.29, 25,679.27 and 12,317.69

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Solution

The fourth proportional to 18,603.29, 25,679.27 and 12,317.69 is: 17,002.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.29 : 25,679.27 = 12,317.69 : x
  2. Step 2: Convert to fraction form
    18,603.29/25,679.27 = 12,317.69/x
  3. Step 3: Cross multiply
    18,603.29x = 25,679.27 × 12,317.69
  4. Step 4: Simplify right side
    18,603.29x = 316,309,189.68
  5. Step 5: Solve for x
    x = 316,309,189.68/18,603.29
  6. Step 6: Final answer
    x = 17,002.87

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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.