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Finding the Fourth Proportional to 9,009.71, 12,432.50 and 6,179.51

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Solution

The fourth proportional to 9,009.71, 12,432.50 and 6,179.51 is: 8,527.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.71 : 12,432.50 = 6,179.51 : x
  2. Step 2: Convert to fraction form
    9,009.71/12,432.50 = 6,179.51/x
  3. Step 3: Cross multiply
    9,009.71x = 12,432.50 × 6,179.51
  4. Step 4: Simplify right side
    9,009.71x = 76,826,665.01
  5. Step 5: Solve for x
    x = 76,826,665.01/9,009.71
  6. Step 6: Final answer
    x = 8,527.09

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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.