Home / 11,521.49-17,288.94-4,857.57

Finding the Fourth Proportional to 11,521.49, 17,288.94 and 4,857.57

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Solution

The fourth proportional to 11,521.49, 17,288.94 and 4,857.57 is: 7,289.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,521.49 : 17,288.94 = 4,857.57 : x
  2. Step 2: Convert to fraction form
    11,521.49/17,288.94 = 4,857.57/x
  3. Step 3: Cross multiply
    11,521.49x = 17,288.94 × 4,857.57
  4. Step 4: Simplify right side
    11,521.49x = 83,982,254.49
  5. Step 5: Solve for x
    x = 83,982,254.49/11,521.49
  6. Step 6: Final answer
    x = 7,289.18

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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.