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Finding the Fourth Proportional to 9,332.78, 12,870.78 and 6,183.50

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Solution

The fourth proportional to 9,332.78, 12,870.78 and 6,183.50 is: 8,527.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,332.78 : 12,870.78 = 6,183.50 : x
  2. Step 2: Convert to fraction form
    9,332.78/12,870.78 = 6,183.50/x
  3. Step 3: Cross multiply
    9,332.78x = 12,870.78 × 6,183.50
  4. Step 4: Simplify right side
    9,332.78x = 79,586,468.13
  5. Step 5: Solve for x
    x = 79,586,468.13/9,332.78
  6. Step 6: Final answer
    x = 8,527.63

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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.