Home / 12,455.52-18,683.30-4,247.52

Finding the Fourth Proportional to 12,455.52, 18,683.30 and 4,247.52

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Solution

The fourth proportional to 12,455.52, 18,683.30 and 4,247.52 is: 6,371.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.52 : 18,683.30 = 4,247.52 : x
  2. Step 2: Convert to fraction form
    12,455.52/18,683.30 = 4,247.52/x
  3. Step 3: Cross multiply
    12,455.52x = 18,683.30 × 4,247.52
  4. Step 4: Simplify right side
    12,455.52x = 79,357,690.42
  5. Step 5: Solve for x
    x = 79,357,690.42/12,455.52
  6. Step 6: Final answer
    x = 6,371.29

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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.