Home / 15,568.38-21,477.50-11,309.21

Finding the Fourth Proportional to 15,568.38, 21,477.50 and 11,309.21

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Solution

The fourth proportional to 15,568.38, 21,477.50 and 11,309.21 is: 15,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,568.38 : 21,477.50 = 11,309.21 : x
  2. Step 2: Convert to fraction form
    15,568.38/21,477.50 = 11,309.21/x
  3. Step 3: Cross multiply
    15,568.38x = 21,477.50 × 11,309.21
  4. Step 4: Simplify right side
    15,568.38x = 242,893,393.84
  5. Step 5: Solve for x
    x = 242,893,393.84/15,568.38
  6. Step 6: Final answer
    x = 15,601.71

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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.