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Finding the Fourth Proportional to 8,896.47, 12,277.08 and 5,119.71

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Solution

The fourth proportional to 8,896.47, 12,277.08 and 5,119.71 is: 7,065.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,896.47 : 12,277.08 = 5,119.71 : x
  2. Step 2: Convert to fraction form
    8,896.47/12,277.08 = 5,119.71/x
  3. Step 3: Cross multiply
    8,896.47x = 12,277.08 × 5,119.71
  4. Step 4: Simplify right side
    8,896.47x = 62,855,089.25
  5. Step 5: Solve for x
    x = 62,855,089.25/8,896.47
  6. Step 6: Final answer
    x = 7,065.17

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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.