Home / 18,917.56-28,393.85-9,564.18

Finding the Fourth Proportional to 18,917.56, 28,393.85 and 9,564.18

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Solution

The fourth proportional to 18,917.56, 28,393.85 and 9,564.18 is: 14,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,917.56 : 28,393.85 = 9,564.18 : x
  2. Step 2: Convert to fraction form
    18,917.56/28,393.85 = 9,564.18/x
  3. Step 3: Cross multiply
    18,917.56x = 28,393.85 × 9,564.18
  4. Step 4: Simplify right side
    18,917.56x = 271,563,892.29
  5. Step 5: Solve for x
    x = 271,563,892.29/18,917.56
  6. Step 6: Final answer
    x = 14,355.12

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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.