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Finding the Fourth Proportional to 9,140.04, 12,619.80 and 6,626.88

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Solution

The fourth proportional to 9,140.04, 12,619.80 and 6,626.88 is: 9,149.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.04 : 12,619.80 = 6,626.88 : x
  2. Step 2: Convert to fraction form
    9,140.04/12,619.80 = 6,626.88/x
  3. Step 3: Cross multiply
    9,140.04x = 12,619.80 × 6,626.88
  4. Step 4: Simplify right side
    9,140.04x = 83,629,900.22
  5. Step 5: Solve for x
    x = 83,629,900.22/9,140.04
  6. Step 6: Final answer
    x = 9,149.84

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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.