Home / 13,488.27-18,614.25-7,520.19

Finding the Fourth Proportional to 13,488.27, 18,614.25 and 7,520.19

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Solution

The fourth proportional to 13,488.27, 18,614.25 and 7,520.19 is: 10,378.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.27 : 18,614.25 = 7,520.19 : x
  2. Step 2: Convert to fraction form
    13,488.27/18,614.25 = 7,520.19/x
  3. Step 3: Cross multiply
    13,488.27x = 18,614.25 × 7,520.19
  4. Step 4: Simplify right side
    13,488.27x = 139,982,696.71
  5. Step 5: Solve for x
    x = 139,982,696.71/13,488.27
  6. Step 6: Final answer
    x = 10,378.11

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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.