Home / 18,723-28,089.12-5,575.32

Finding the Fourth Proportional to 18,723, 28,089.12 and 5,575.32

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Solution

The fourth proportional to 18,723, 28,089.12 and 5,575.32 is: 8,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723 : 28,089.12 = 5,575.32 : x
  2. Step 2: Convert to fraction form
    18,723/28,089.12 = 5,575.32/x
  3. Step 3: Cross multiply
    18,723x = 28,089.12 × 5,575.32
  4. Step 4: Simplify right side
    18,723x = 156,605,832.52
  5. Step 5: Solve for x
    x = 156,605,832.52/18,723
  6. Step 6: Final answer
    x = 8,364.36

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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.