Home / 15,820.26-21,831.09-9,454.07

Finding the Fourth Proportional to 15,820.26, 21,831.09 and 9,454.07

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Solution

The fourth proportional to 15,820.26, 21,831.09 and 9,454.07 is: 13,046.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,820.26 : 21,831.09 = 9,454.07 : x
  2. Step 2: Convert to fraction form
    15,820.26/21,831.09 = 9,454.07/x
  3. Step 3: Cross multiply
    15,820.26x = 21,831.09 × 9,454.07
  4. Step 4: Simplify right side
    15,820.26x = 206,392,543.88
  5. Step 5: Solve for x
    x = 206,392,543.88/15,820.26
  6. Step 6: Final answer
    x = 13,046.09

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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.