Home / 11,178.96-15,423.69-6,933.18

Finding the Fourth Proportional to 11,178.96, 15,423.69 and 6,933.18

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Solution

The fourth proportional to 11,178.96, 15,423.69 and 6,933.18 is: 9,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.96 : 15,423.69 = 6,933.18 : x
  2. Step 2: Convert to fraction form
    11,178.96/15,423.69 = 6,933.18/x
  3. Step 3: Cross multiply
    11,178.96x = 15,423.69 × 6,933.18
  4. Step 4: Simplify right side
    11,178.96x = 106,935,219.03
  5. Step 5: Solve for x
    x = 106,935,219.03/11,178.96
  6. Step 6: Final answer
    x = 9,565.76

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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.