Home / 18,709.44-28,068.78-5,561.75

Finding the Fourth Proportional to 18,709.44, 28,068.78 and 5,561.75

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Solution

The fourth proportional to 18,709.44, 28,068.78 and 5,561.75 is: 8,344.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.44 : 28,068.78 = 5,561.75 : x
  2. Step 2: Convert to fraction form
    18,709.44/28,068.78 = 5,561.75/x
  3. Step 3: Cross multiply
    18,709.44x = 28,068.78 × 5,561.75
  4. Step 4: Simplify right side
    18,709.44x = 156,111,537.17
  5. Step 5: Solve for x
    x = 156,111,537.17/18,709.44
  6. Step 6: Final answer
    x = 8,344.00

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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.