Home / 13,488.92-18,605.40-8,950.76

Finding the Fourth Proportional to 13,488.92, 18,605.40 and 8,950.76

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Solution

The fourth proportional to 13,488.92, 18,605.40 and 8,950.76 is: 12,345.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.92 : 18,605.40 = 8,950.76 : x
  2. Step 2: Convert to fraction form
    13,488.92/18,605.40 = 8,950.76/x
  3. Step 3: Cross multiply
    13,488.92x = 18,605.40 × 8,950.76
  4. Step 4: Simplify right side
    13,488.92x = 166,532,470.10
  5. Step 5: Solve for x
    x = 166,532,470.10/13,488.92
  6. Step 6: Final answer
    x = 12,345.87

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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.