Home / 11,155.10-15,394.25-6,119.58

Finding the Fourth Proportional to 11,155.10, 15,394.25 and 6,119.58

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Solution

The fourth proportional to 11,155.10, 15,394.25 and 6,119.58 is: 8,445.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.10 : 15,394.25 = 6,119.58 : x
  2. Step 2: Convert to fraction form
    11,155.10/15,394.25 = 6,119.58/x
  3. Step 3: Cross multiply
    11,155.10x = 15,394.25 × 6,119.58
  4. Step 4: Simplify right side
    11,155.10x = 94,206,356.01
  5. Step 5: Solve for x
    x = 94,206,356.01/11,155.10
  6. Step 6: Final answer
    x = 8,445.13

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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.