Home / 12,985.08-19,473.20-4,217.82

Finding the Fourth Proportional to 12,985.08, 19,473.20 and 4,217.82

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Solution

The fourth proportional to 12,985.08, 19,473.20 and 4,217.82 is: 6,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985.08 : 19,473.20 = 4,217.82 : x
  2. Step 2: Convert to fraction form
    12,985.08/19,473.20 = 4,217.82/x
  3. Step 3: Cross multiply
    12,985.08x = 19,473.20 × 4,217.82
  4. Step 4: Simplify right side
    12,985.08x = 82,134,452.42
  5. Step 5: Solve for x
    x = 82,134,452.42/12,985.08
  6. Step 6: Final answer
    x = 6,325.29

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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.