Home / 11,135.59-15,377.34-7,163.45

Finding the Fourth Proportional to 11,135.59, 15,377.34 and 7,163.45

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Solution

The fourth proportional to 11,135.59, 15,377.34 and 7,163.45 is: 9,892.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.59 : 15,377.34 = 7,163.45 : x
  2. Step 2: Convert to fraction form
    11,135.59/15,377.34 = 7,163.45/x
  3. Step 3: Cross multiply
    11,135.59x = 15,377.34 × 7,163.45
  4. Step 4: Simplify right side
    11,135.59x = 110,154,835.49
  5. Step 5: Solve for x
    x = 110,154,835.49/11,135.59
  6. Step 6: Final answer
    x = 9,892.14

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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.