Home / 15,394.27-21,246.09-8,681.99

Finding the Fourth Proportional to 15,394.27, 21,246.09 and 8,681.99

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Solution

The fourth proportional to 15,394.27, 21,246.09 and 8,681.99 is: 11,982.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,394.27 : 21,246.09 = 8,681.99 : x
  2. Step 2: Convert to fraction form
    15,394.27/21,246.09 = 8,681.99/x
  3. Step 3: Cross multiply
    15,394.27x = 21,246.09 × 8,681.99
  4. Step 4: Simplify right side
    15,394.27x = 184,458,340.92
  5. Step 5: Solve for x
    x = 184,458,340.92/15,394.27
  6. Step 6: Final answer
    x = 11,982.28

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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.