Home / 16,715.80-23,070.26-9,640.84

Finding the Fourth Proportional to 16,715.80, 23,070.26 and 9,640.84

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Solution

The fourth proportional to 16,715.80, 23,070.26 and 9,640.84 is: 13,305.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,715.80 : 23,070.26 = 9,640.84 : x
  2. Step 2: Convert to fraction form
    16,715.80/23,070.26 = 9,640.84/x
  3. Step 3: Cross multiply
    16,715.80x = 23,070.26 × 9,640.84
  4. Step 4: Simplify right side
    16,715.80x = 222,416,685.42
  5. Step 5: Solve for x
    x = 222,416,685.42/16,715.80
  6. Step 6: Final answer
    x = 13,305.78

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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.