Home / 15,032.86-20,746.90-8,659.66

Finding the Fourth Proportional to 15,032.86, 20,746.90 and 8,659.66

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Solution

The fourth proportional to 15,032.86, 20,746.90 and 8,659.66 is: 11,951.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,032.86 : 20,746.90 = 8,659.66 : x
  2. Step 2: Convert to fraction form
    15,032.86/20,746.90 = 8,659.66/x
  3. Step 3: Cross multiply
    15,032.86x = 20,746.90 × 8,659.66
  4. Step 4: Simplify right side
    15,032.86x = 179,661,100.05
  5. Step 5: Solve for x
    x = 179,661,100.05/15,032.86
  6. Step 6: Final answer
    x = 11,951.23

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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.