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Finding the Fourth Proportional to 8,585.04, 11,819.40 and 7,340.88

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Solution

The fourth proportional to 8,585.04, 11,819.40 and 7,340.88 is: 10,106.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.04 : 11,819.40 = 7,340.88 : x
  2. Step 2: Convert to fraction form
    8,585.04/11,819.40 = 7,340.88/x
  3. Step 3: Cross multiply
    8,585.04x = 11,819.40 × 7,340.88
  4. Step 4: Simplify right side
    8,585.04x = 86,764,797.07
  5. Step 5: Solve for x
    x = 86,764,797.07/8,585.04
  6. Step 6: Final answer
    x = 10,106.51

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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.