Home / 15,935.14-21,991.10-8,862.07

Finding the Fourth Proportional to 15,935.14, 21,991.10 and 8,862.07

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Solution

The fourth proportional to 15,935.14, 21,991.10 and 8,862.07 is: 12,229.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,935.14 : 21,991.10 = 8,862.07 : x
  2. Step 2: Convert to fraction form
    15,935.14/21,991.10 = 8,862.07/x
  3. Step 3: Cross multiply
    15,935.14x = 21,991.10 × 8,862.07
  4. Step 4: Simplify right side
    15,935.14x = 194,886,623.27
  5. Step 5: Solve for x
    x = 194,886,623.27/15,935.14
  6. Step 6: Final answer
    x = 12,229.99

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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.