Home / 14,681.91-20,260.40-8,394.69

Finding the Fourth Proportional to 14,681.91, 20,260.40 and 8,394.69

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Solution

The fourth proportional to 14,681.91, 20,260.40 and 8,394.69 is: 11,584.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,681.91 : 20,260.40 = 8,394.69 : x
  2. Step 2: Convert to fraction form
    14,681.91/20,260.40 = 8,394.69/x
  3. Step 3: Cross multiply
    14,681.91x = 20,260.40 × 8,394.69
  4. Step 4: Simplify right side
    14,681.91x = 170,079,735.30
  5. Step 5: Solve for x
    x = 170,079,735.30/14,681.91
  6. Step 6: Final answer
    x = 11,584.31

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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.