Home / 15,674.86-21,659.33-11,657.91

Finding the Fourth Proportional to 15,674.86, 21,659.33 and 11,657.91

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Solution

The fourth proportional to 15,674.86, 21,659.33 and 11,657.91 is: 16,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,674.86 : 21,659.33 = 11,657.91 : x
  2. Step 2: Convert to fraction form
    15,674.86/21,659.33 = 11,657.91/x
  3. Step 3: Cross multiply
    15,674.86x = 21,659.33 × 11,657.91
  4. Step 4: Simplify right side
    15,674.86x = 252,502,548.95
  5. Step 5: Solve for x
    x = 252,502,548.95/15,674.86
  6. Step 6: Final answer
    x = 16,108.76

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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.