Home / 15,636.39-21,578.00-8,562.81

Finding the Fourth Proportional to 15,636.39, 21,578.00 and 8,562.81

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Solution

The fourth proportional to 15,636.39, 21,578.00 and 8,562.81 is: 11,816.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.39 : 21,578.00 = 8,562.81 : x
  2. Step 2: Convert to fraction form
    15,636.39/21,578.00 = 8,562.81/x
  3. Step 3: Cross multiply
    15,636.39x = 21,578.00 × 8,562.81
  4. Step 4: Simplify right side
    15,636.39x = 184,768,352.28
  5. Step 5: Solve for x
    x = 184,768,352.28/15,636.39
  6. Step 6: Final answer
    x = 11,816.56

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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.