Home / 13,947.68-19,246.92-7,658.72

Finding the Fourth Proportional to 13,947.68, 19,246.92 and 7,658.72

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Solution

The fourth proportional to 13,947.68, 19,246.92 and 7,658.72 is: 10,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.68 : 19,246.92 = 7,658.72 : x
  2. Step 2: Convert to fraction form
    13,947.68/19,246.92 = 7,658.72/x
  3. Step 3: Cross multiply
    13,947.68x = 19,246.92 × 7,658.72
  4. Step 4: Simplify right side
    13,947.68x = 147,406,771.14
  5. Step 5: Solve for x
    x = 147,406,771.14/13,947.68
  6. Step 6: Final answer
    x = 10,568.55

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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.