Home / 11,114.18-15,325.35-7,133.78

Finding the Fourth Proportional to 11,114.18, 15,325.35 and 7,133.78

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Solution

The fourth proportional to 11,114.18, 15,325.35 and 7,133.78 is: 9,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.18 : 15,325.35 = 7,133.78 : x
  2. Step 2: Convert to fraction form
    11,114.18/15,325.35 = 7,133.78/x
  3. Step 3: Cross multiply
    11,114.18x = 15,325.35 × 7,133.78
  4. Step 4: Simplify right side
    11,114.18x = 109,327,675.32
  5. Step 5: Solve for x
    x = 109,327,675.32/11,114.18
  6. Step 6: Final answer
    x = 9,836.77

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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.