Home / 12,218.68-18,330.52-3,898.48

Finding the Fourth Proportional to 12,218.68, 18,330.52 and 3,898.48

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Solution

The fourth proportional to 12,218.68, 18,330.52 and 3,898.48 is: 5,848.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.68 : 18,330.52 = 3,898.48 : x
  2. Step 2: Convert to fraction form
    12,218.68/18,330.52 = 3,898.48/x
  3. Step 3: Cross multiply
    12,218.68x = 18,330.52 × 3,898.48
  4. Step 4: Simplify right side
    12,218.68x = 71,461,165.61
  5. Step 5: Solve for x
    x = 71,461,165.61/12,218.68
  6. Step 6: Final answer
    x = 5,848.52

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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.