Home / 16,708.55-23,057.12-9,990.20

Finding the Fourth Proportional to 16,708.55, 23,057.12 and 9,990.20

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Solution

The fourth proportional to 16,708.55, 23,057.12 and 9,990.20 is: 13,786.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,708.55 : 23,057.12 = 9,990.20 : x
  2. Step 2: Convert to fraction form
    16,708.55/23,057.12 = 9,990.20/x
  3. Step 3: Cross multiply
    16,708.55x = 23,057.12 × 9,990.20
  4. Step 4: Simplify right side
    16,708.55x = 230,345,322.84
  5. Step 5: Solve for x
    x = 230,345,322.84/16,708.55
  6. Step 6: Final answer
    x = 13,786.08

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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.