Home / 11,512.74-15,888.50-6,476.66

Finding the Fourth Proportional to 11,512.74, 15,888.50 and 6,476.66

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Solution

The fourth proportional to 11,512.74, 15,888.50 and 6,476.66 is: 8,938.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.74 : 15,888.50 = 6,476.66 : x
  2. Step 2: Convert to fraction form
    11,512.74/15,888.50 = 6,476.66/x
  3. Step 3: Cross multiply
    11,512.74x = 15,888.50 × 6,476.66
  4. Step 4: Simplify right side
    11,512.74x = 102,904,412.41
  5. Step 5: Solve for x
    x = 102,904,412.41/11,512.74
  6. Step 6: Final answer
    x = 8,938.31

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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.