Home / 11,173.61-15,419.96-6,138.29

Finding the Fourth Proportional to 11,173.61, 15,419.96 and 6,138.29

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Solution

The fourth proportional to 11,173.61, 15,419.96 and 6,138.29 is: 8,471.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.61 : 15,419.96 = 6,138.29 : x
  2. Step 2: Convert to fraction form
    11,173.61/15,419.96 = 6,138.29/x
  3. Step 3: Cross multiply
    11,173.61x = 15,419.96 × 6,138.29
  4. Step 4: Simplify right side
    11,173.61x = 94,652,124.51
  5. Step 5: Solve for x
    x = 94,652,124.51/11,173.61
  6. Step 6: Final answer
    x = 8,471.05

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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.