Home / 11,712.34-16,162.90-6,407.10

Finding the Fourth Proportional to 11,712.34, 16,162.90 and 6,407.10

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Solution

The fourth proportional to 11,712.34, 16,162.90 and 6,407.10 is: 8,841.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.34 : 16,162.90 = 6,407.10 : x
  2. Step 2: Convert to fraction form
    11,712.34/16,162.90 = 6,407.10/x
  3. Step 3: Cross multiply
    11,712.34x = 16,162.90 × 6,407.10
  4. Step 4: Simplify right side
    11,712.34x = 103,557,235.78
  5. Step 5: Solve for x
    x = 103,557,235.78/11,712.34
  6. Step 6: Final answer
    x = 8,841.72

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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.