Home / 16,686.72-23,028.84-10,720.26

Finding the Fourth Proportional to 16,686.72, 23,028.84 and 10,720.26

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Solution

The fourth proportional to 16,686.72, 23,028.84 and 10,720.26 is: 14,794.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,686.72 : 23,028.84 = 10,720.26 : x
  2. Step 2: Convert to fraction form
    16,686.72/23,028.84 = 10,720.26/x
  3. Step 3: Cross multiply
    16,686.72x = 23,028.84 × 10,720.26
  4. Step 4: Simplify right side
    16,686.72x = 246,875,152.30
  5. Step 5: Solve for x
    x = 246,875,152.30/16,686.72
  6. Step 6: Final answer
    x = 14,794.71

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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.