Home / 11,178.16-15,433.08-6,933.76

Finding the Fourth Proportional to 11,178.16, 15,433.08 and 6,933.76

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Solution

The fourth proportional to 11,178.16, 15,433.08 and 6,933.76 is: 9,573.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.16 : 15,433.08 = 6,933.76 : x
  2. Step 2: Convert to fraction form
    11,178.16/15,433.08 = 6,933.76/x
  3. Step 3: Cross multiply
    11,178.16x = 15,433.08 × 6,933.76
  4. Step 4: Simplify right side
    11,178.16x = 107,009,272.78
  5. Step 5: Solve for x
    x = 107,009,272.78/11,178.16
  6. Step 6: Final answer
    x = 9,573.07

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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.