Home / 13,010.71-19,516.17-4,245.65

Finding the Fourth Proportional to 13,010.71, 19,516.17 and 4,245.65

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Solution

The fourth proportional to 13,010.71, 19,516.17 and 4,245.65 is: 6,368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.71 : 19,516.17 = 4,245.65 : x
  2. Step 2: Convert to fraction form
    13,010.71/19,516.17 = 4,245.65/x
  3. Step 3: Cross multiply
    13,010.71x = 19,516.17 × 4,245.65
  4. Step 4: Simplify right side
    13,010.71x = 82,858,827.16
  5. Step 5: Solve for x
    x = 82,858,827.16/13,010.71
  6. Step 6: Final answer
    x = 6,368.51

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Half scale
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Double scale
Find fourth proportional to 13,011.71, 19,517.67 and 4,246.65
Similar ratio
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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.