Home / 12,587.25-18,884.99-3,822.17

Finding the Fourth Proportional to 12,587.25, 18,884.99 and 3,822.17

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Solution

The fourth proportional to 12,587.25, 18,884.99 and 3,822.17 is: 5,734.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.25 : 18,884.99 = 3,822.17 : x
  2. Step 2: Convert to fraction form
    12,587.25/18,884.99 = 3,822.17/x
  3. Step 3: Cross multiply
    12,587.25x = 18,884.99 × 3,822.17
  4. Step 4: Simplify right side
    12,587.25x = 72,181,642.23
  5. Step 5: Solve for x
    x = 72,181,642.23/12,587.25
  6. Step 6: Final answer
    x = 5,734.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.