Home / 18,899.08-28,351.71-5,748.40

Finding the Fourth Proportional to 18,899.08, 28,351.71 and 5,748.40

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Solution

The fourth proportional to 18,899.08, 28,351.71 and 5,748.40 is: 8,623.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899.08 : 28,351.71 = 5,748.40 : x
  2. Step 2: Convert to fraction form
    18,899.08/28,351.71 = 5,748.40/x
  3. Step 3: Cross multiply
    18,899.08x = 28,351.71 × 5,748.40
  4. Step 4: Simplify right side
    18,899.08x = 162,976,969.76
  5. Step 5: Solve for x
    x = 162,976,969.76/18,899.08
  6. Step 6: Final answer
    x = 8,623.54

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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.