Home / 17,345.92-23,947.68-11,388

Finding the Fourth Proportional to 17,345.92, 23,947.68 and 11,388

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Solution

The fourth proportional to 17,345.92, 23,947.68 and 11,388 is: 15,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,345.92 : 23,947.68 = 11,388 : x
  2. Step 2: Convert to fraction form
    17,345.92/23,947.68 = 11,388/x
  3. Step 3: Cross multiply
    17,345.92x = 23,947.68 × 11,388
  4. Step 4: Simplify right side
    17,345.92x = 272,716,179.84
  5. Step 5: Solve for x
    x = 272,716,179.84/17,345.92
  6. Step 6: Final answer
    x = 15,722.21

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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.