Home / 14,704.71-20,292.39-7,990.32

Finding the Fourth Proportional to 14,704.71, 20,292.39 and 7,990.32

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Solution

The fourth proportional to 14,704.71, 20,292.39 and 7,990.32 is: 11,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,704.71 : 20,292.39 = 7,990.32 : x
  2. Step 2: Convert to fraction form
    14,704.71/20,292.39 = 7,990.32/x
  3. Step 3: Cross multiply
    14,704.71x = 20,292.39 × 7,990.32
  4. Step 4: Simplify right side
    14,704.71x = 162,142,689.66
  5. Step 5: Solve for x
    x = 162,142,689.66/14,704.71
  6. Step 6: Final answer
    x = 11,026.58

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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.