Home / 13,280.20-18,326.91-7,614.94

Finding the Fourth Proportional to 13,280.20, 18,326.91 and 7,614.94

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Solution

The fourth proportional to 13,280.20, 18,326.91 and 7,614.94 is: 10,508.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.20 : 18,326.91 = 7,614.94 : x
  2. Step 2: Convert to fraction form
    13,280.20/18,326.91 = 7,614.94/x
  3. Step 3: Cross multiply
    13,280.20x = 18,326.91 × 7,614.94
  4. Step 4: Simplify right side
    13,280.20x = 139,558,320.04
  5. Step 5: Solve for x
    x = 139,558,320.04/13,280.20
  6. Step 6: Final answer
    x = 10,508.75

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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.