Home / 16,910.80-23,309.93-13,320.07

Finding the Fourth Proportional to 16,910.80, 23,309.93 and 13,320.07

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Solution

The fourth proportional to 16,910.80, 23,309.93 and 13,320.07 is: 18,360.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,910.80 : 23,309.93 = 13,320.07 : x
  2. Step 2: Convert to fraction form
    16,910.80/23,309.93 = 13,320.07/x
  3. Step 3: Cross multiply
    16,910.80x = 23,309.93 × 13,320.07
  4. Step 4: Simplify right side
    16,910.80x = 310,489,874.32
  5. Step 5: Solve for x
    x = 310,489,874.32/16,910.80
  6. Step 6: Final answer
    x = 18,360.45

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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.