Home / 12,748.36-19,109.40-9,229.65

Finding the Fourth Proportional to 12,748.36, 19,109.40 and 9,229.65

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Solution

The fourth proportional to 12,748.36, 19,109.40 and 9,229.65 is: 13,834.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.36 : 19,109.40 = 9,229.65 : x
  2. Step 2: Convert to fraction form
    12,748.36/19,109.40 = 9,229.65/x
  3. Step 3: Cross multiply
    12,748.36x = 19,109.40 × 9,229.65
  4. Step 4: Simplify right side
    12,748.36x = 176,373,073.71
  5. Step 5: Solve for x
    x = 176,373,073.71/12,748.36
  6. Step 6: Final answer
    x = 13,834.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.