Home / 15,655.68-21,623.76-11,399.94

Finding the Fourth Proportional to 15,655.68, 21,623.76 and 11,399.94

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Solution

The fourth proportional to 15,655.68, 21,623.76 and 11,399.94 is: 15,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.68 : 21,623.76 = 11,399.94 : x
  2. Step 2: Convert to fraction form
    15,655.68/21,623.76 = 11,399.94/x
  3. Step 3: Cross multiply
    15,655.68x = 21,623.76 × 11,399.94
  4. Step 4: Simplify right side
    15,655.68x = 246,509,566.57
  5. Step 5: Solve for x
    x = 246,509,566.57/15,655.68
  6. Step 6: Final answer
    x = 15,745.70

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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.