Home / 13,246.38-19,870.20-7,398.54

Finding the Fourth Proportional to 13,246.38, 19,870.20 and 7,398.54

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Solution

The fourth proportional to 13,246.38, 19,870.20 and 7,398.54 is: 11,098.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.38 : 19,870.20 = 7,398.54 : x
  2. Step 2: Convert to fraction form
    13,246.38/19,870.20 = 7,398.54/x
  3. Step 3: Cross multiply
    13,246.38x = 19,870.20 × 7,398.54
  4. Step 4: Simplify right side
    13,246.38x = 147,010,469.51
  5. Step 5: Solve for x
    x = 147,010,469.51/13,246.38
  6. Step 6: Final answer
    x = 11,098.16

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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.