Home / 11,155.19-15,393.90-6,119.37

Finding the Fourth Proportional to 11,155.19, 15,393.90 and 6,119.37

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Solution

The fourth proportional to 11,155.19, 15,393.90 and 6,119.37 is: 8,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.19 : 15,393.90 = 6,119.37 : x
  2. Step 2: Convert to fraction form
    11,155.19/15,393.90 = 6,119.37/x
  3. Step 3: Cross multiply
    11,155.19x = 15,393.90 × 6,119.37
  4. Step 4: Simplify right side
    11,155.19x = 94,200,916.06
  5. Step 5: Solve for x
    x = 94,200,916.06/11,155.19
  6. Step 6: Final answer
    x = 8,444.58

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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.