Home / 13,135.10-19,691.56-6,111.49

Finding the Fourth Proportional to 13,135.10, 19,691.56 and 6,111.49

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Solution

The fourth proportional to 13,135.10, 19,691.56 and 6,111.49 is: 9,162.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.10 : 19,691.56 = 6,111.49 : x
  2. Step 2: Convert to fraction form
    13,135.10/19,691.56 = 6,111.49/x
  3. Step 3: Cross multiply
    13,135.10x = 19,691.56 × 6,111.49
  4. Step 4: Simplify right side
    13,135.10x = 120,344,772.02
  5. Step 5: Solve for x
    x = 120,344,772.02/13,135.10
  6. Step 6: Final answer
    x = 9,162.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.