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Finding the Fourth Proportional to 15,338.09, 22,990.70 and 7,935.10

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Solution

The fourth proportional to 15,338.09, 22,990.70 and 7,935.10 is: 11,894.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,338.09 : 22,990.70 = 7,935.10 : x
  2. Step 2: Convert to fraction form
    15,338.09/22,990.70 = 7,935.10/x
  3. Step 3: Cross multiply
    15,338.09x = 22,990.70 × 7,935.10
  4. Step 4: Simplify right side
    15,338.09x = 182,433,465.93
  5. Step 5: Solve for x
    x = 182,433,465.93/15,338.09
  6. Step 6: Final answer
    x = 11,894.14

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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.