Home / 11,155.29-15,394.73-6,119.72

Finding the Fourth Proportional to 11,155.29, 15,394.73 and 6,119.72

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Solution

The fourth proportional to 11,155.29, 15,394.73 and 6,119.72 is: 8,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.29 : 15,394.73 = 6,119.72 : x
  2. Step 2: Convert to fraction form
    11,155.29/15,394.73 = 6,119.72/x
  3. Step 3: Cross multiply
    11,155.29x = 15,394.73 × 6,119.72
  4. Step 4: Simplify right side
    11,155.29x = 94,211,329.50
  5. Step 5: Solve for x
    x = 94,211,329.50/11,155.29
  6. Step 6: Final answer
    x = 8,445.44

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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.