Home / 14,701.80-20,301.94-9,405.92

Finding the Fourth Proportional to 14,701.80, 20,301.94 and 9,405.92

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Solution

The fourth proportional to 14,701.80, 20,301.94 and 9,405.92 is: 12,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,701.80 : 20,301.94 = 9,405.92 : x
  2. Step 2: Convert to fraction form
    14,701.80/20,301.94 = 9,405.92/x
  3. Step 3: Cross multiply
    14,701.80x = 20,301.94 × 9,405.92
  4. Step 4: Simplify right side
    14,701.80x = 190,958,486.00
  5. Step 5: Solve for x
    x = 190,958,486.00/14,701.80
  6. Step 6: Final answer
    x = 12,988.78

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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.