Home / 11,712.47-16,162.20-6,675.89

Finding the Fourth Proportional to 11,712.47, 16,162.20 and 6,675.89

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Solution

The fourth proportional to 11,712.47, 16,162.20 and 6,675.89 is: 9,212.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.47 : 16,162.20 = 6,675.89 : x
  2. Step 2: Convert to fraction form
    11,712.47/16,162.20 = 6,675.89/x
  3. Step 3: Cross multiply
    11,712.47x = 16,162.20 × 6,675.89
  4. Step 4: Simplify right side
    11,712.47x = 107,896,988.55
  5. Step 5: Solve for x
    x = 107,896,988.55/11,712.47
  6. Step 6: Final answer
    x = 9,212.15

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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.