Home / 11,750.10-16,215.61-6,445.11

Finding the Fourth Proportional to 11,750.10, 16,215.61 and 6,445.11

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Solution

The fourth proportional to 11,750.10, 16,215.61 and 6,445.11 is: 8,894.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.10 : 16,215.61 = 6,445.11 : x
  2. Step 2: Convert to fraction form
    11,750.10/16,215.61 = 6,445.11/x
  3. Step 3: Cross multiply
    11,750.10x = 16,215.61 × 6,445.11
  4. Step 4: Simplify right side
    11,750.10x = 104,511,390.17
  5. Step 5: Solve for x
    x = 104,511,390.17/11,750.10
  6. Step 6: Final answer
    x = 8,894.51

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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.