Home / 19,002.12-28,500.12-6,521.64

Finding the Fourth Proportional to 19,002.12, 28,500.12 and 6,521.64

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Solution

The fourth proportional to 19,002.12, 28,500.12 and 6,521.64 is: 9,781.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,002.12 : 28,500.12 = 6,521.64 : x
  2. Step 2: Convert to fraction form
    19,002.12/28,500.12 = 6,521.64/x
  3. Step 3: Cross multiply
    19,002.12x = 28,500.12 × 6,521.64
  4. Step 4: Simplify right side
    19,002.12x = 185,867,522.60
  5. Step 5: Solve for x
    x = 185,867,522.60/19,002.12
  6. Step 6: Final answer
    x = 9,781.41

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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.