Home / 18,837.77-28,256.56-5,690.09

Finding the Fourth Proportional to 18,837.77, 28,256.56 and 5,690.09

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Solution

The fourth proportional to 18,837.77, 28,256.56 and 5,690.09 is: 8,535.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.77 : 28,256.56 = 5,690.09 : x
  2. Step 2: Convert to fraction form
    18,837.77/28,256.56 = 5,690.09/x
  3. Step 3: Cross multiply
    18,837.77x = 28,256.56 × 5,690.09
  4. Step 4: Simplify right side
    18,837.77x = 160,782,425.91
  5. Step 5: Solve for x
    x = 160,782,425.91/18,837.77
  6. Step 6: Final answer
    x = 8,535.11

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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.