Home / 11,173.55-15,419.48-6,137.90

Finding the Fourth Proportional to 11,173.55, 15,419.48 and 6,137.90

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Solution

The fourth proportional to 11,173.55, 15,419.48 and 6,137.90 is: 8,470.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,173.55 : 15,419.48 = 6,137.90 : x
  2. Step 2: Convert to fraction form
    11,173.55/15,419.48 = 6,137.90/x
  3. Step 3: Cross multiply
    11,173.55x = 15,419.48 × 6,137.90
  4. Step 4: Simplify right side
    11,173.55x = 94,643,118.51
  5. Step 5: Solve for x
    x = 94,643,118.51/11,173.55
  6. Step 6: Final answer
    x = 8,470.29

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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.