Home / 17,760.29-26,640.42-5,280.26

Finding the Fourth Proportional to 17,760.29, 26,640.42 and 5,280.26

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Solution

The fourth proportional to 17,760.29, 26,640.42 and 5,280.26 is: 7,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,760.29 : 26,640.42 = 5,280.26 : x
  2. Step 2: Convert to fraction form
    17,760.29/26,640.42 = 5,280.26/x
  3. Step 3: Cross multiply
    17,760.29x = 26,640.42 × 5,280.26
  4. Step 4: Simplify right side
    17,760.29x = 140,668,210.91
  5. Step 5: Solve for x
    x = 140,668,210.91/17,760.29
  6. Step 6: Final answer
    x = 7,920.38

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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.