Home / 15,935.14-21,989.10-8,860.06

Finding the Fourth Proportional to 15,935.14, 21,989.10 and 8,860.06

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Solution

The fourth proportional to 15,935.14, 21,989.10 and 8,860.06 is: 12,226.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,935.14 : 21,989.10 = 8,860.06 : x
  2. Step 2: Convert to fraction form
    15,935.14/21,989.10 = 8,860.06/x
  3. Step 3: Cross multiply
    15,935.14x = 21,989.10 × 8,860.06
  4. Step 4: Simplify right side
    15,935.14x = 194,824,745.35
  5. Step 5: Solve for x
    x = 194,824,745.35/15,935.14
  6. Step 6: Final answer
    x = 12,226.11

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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.