Home / 11,155.68-15,394.76-6,119.76

Finding the Fourth Proportional to 11,155.68, 15,394.76 and 6,119.76

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Solution

The fourth proportional to 11,155.68, 15,394.76 and 6,119.76 is: 8,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.68 : 15,394.76 = 6,119.76 : x
  2. Step 2: Convert to fraction form
    11,155.68/15,394.76 = 6,119.76/x
  3. Step 3: Cross multiply
    11,155.68x = 15,394.76 × 6,119.76
  4. Step 4: Simplify right side
    11,155.68x = 94,212,236.46
  5. Step 5: Solve for x
    x = 94,212,236.46/11,155.68
  6. Step 6: Final answer
    x = 8,445.23

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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.