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Finding the Fourth Proportional to 9,039.78, 12,476.16 and 6,530.01

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Solution

The fourth proportional to 9,039.78, 12,476.16 and 6,530.01 is: 9,012.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.78 : 12,476.16 = 6,530.01 : x
  2. Step 2: Convert to fraction form
    9,039.78/12,476.16 = 6,530.01/x
  3. Step 3: Cross multiply
    9,039.78x = 12,476.16 × 6,530.01
  4. Step 4: Simplify right side
    9,039.78x = 81,469,449.56
  5. Step 5: Solve for x
    x = 81,469,449.56/9,039.78
  6. Step 6: Final answer
    x = 9,012.33

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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.