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Finding the Fourth Proportional to 9,368.93, 12,929.25 and 5,119.97

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Solution

The fourth proportional to 9,368.93, 12,929.25 and 5,119.97 is: 7,065.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.93 : 12,929.25 = 5,119.97 : x
  2. Step 2: Convert to fraction form
    9,368.93/12,929.25 = 5,119.97/x
  3. Step 3: Cross multiply
    9,368.93x = 12,929.25 × 5,119.97
  4. Step 4: Simplify right side
    9,368.93x = 66,197,307.48
  5. Step 5: Solve for x
    x = 66,197,307.48/9,368.93
  6. Step 6: Final answer
    x = 7,065.62

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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.