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Finding the Fourth Proportional to 8,819.04, 13,210.04 and 7,158.75

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Solution

The fourth proportional to 8,819.04, 13,210.04 and 7,158.75 is: 10,723.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.04 : 13,210.04 = 7,158.75 : x
  2. Step 2: Convert to fraction form
    8,819.04/13,210.04 = 7,158.75/x
  3. Step 3: Cross multiply
    8,819.04x = 13,210.04 × 7,158.75
  4. Step 4: Simplify right side
    8,819.04x = 94,567,338.06
  5. Step 5: Solve for x
    x = 94,567,338.06/8,819.04
  6. Step 6: Final answer
    x = 10,723.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.