Home / 15,468.81-21,346.97-8,395.23

Finding the Fourth Proportional to 15,468.81, 21,346.97 and 8,395.23

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Solution

The fourth proportional to 15,468.81, 21,346.97 and 8,395.23 is: 11,585.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.81 : 21,346.97 = 8,395.23 : x
  2. Step 2: Convert to fraction form
    15,468.81/21,346.97 = 8,395.23/x
  3. Step 3: Cross multiply
    15,468.81x = 21,346.97 × 8,395.23
  4. Step 4: Simplify right side
    15,468.81x = 179,212,823.99
  5. Step 5: Solve for x
    x = 179,212,823.99/15,468.81
  6. Step 6: Final answer
    x = 11,585.43

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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.