Home / 15,743.83-21,726.51-8,573.76

Finding the Fourth Proportional to 15,743.83, 21,726.51 and 8,573.76

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Solution

The fourth proportional to 15,743.83, 21,726.51 and 8,573.76 is: 11,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.83 : 21,726.51 = 8,573.76 : x
  2. Step 2: Convert to fraction form
    15,743.83/21,726.51 = 8,573.76/x
  3. Step 3: Cross multiply
    15,743.83x = 21,726.51 × 8,573.76
  4. Step 4: Simplify right side
    15,743.83x = 186,277,910.92
  5. Step 5: Solve for x
    x = 186,277,910.92/15,743.83
  6. Step 6: Final answer
    x = 11,831.80

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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.