Home / 18,835.71-28,219.12-8,822.08

Finding the Fourth Proportional to 18,835.71, 28,219.12 and 8,822.08

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Solution

The fourth proportional to 18,835.71, 28,219.12 and 8,822.08 is: 13,216.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.71 : 28,219.12 = 8,822.08 : x
  2. Step 2: Convert to fraction form
    18,835.71/28,219.12 = 8,822.08/x
  3. Step 3: Cross multiply
    18,835.71x = 28,219.12 × 8,822.08
  4. Step 4: Simplify right side
    18,835.71x = 248,951,334.17
  5. Step 5: Solve for x
    x = 248,951,334.17/18,835.71
  6. Step 6: Final answer
    x = 13,216.99

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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.