Home / 15,468.36-21,346.20-8,394.72

Finding the Fourth Proportional to 15,468.36, 21,346.20 and 8,394.72

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Solution

The fourth proportional to 15,468.36, 21,346.20 and 8,394.72 is: 11,584.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.36 : 21,346.20 = 8,394.72 : x
  2. Step 2: Convert to fraction form
    15,468.36/21,346.20 = 8,394.72/x
  3. Step 3: Cross multiply
    15,468.36x = 21,346.20 × 8,394.72
  4. Step 4: Simplify right side
    15,468.36x = 179,195,372.06
  5. Step 5: Solve for x
    x = 179,195,372.06/15,468.36
  6. Step 6: Final answer
    x = 11,584.64

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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.