Home / 12,416.20-18,624.30-10,083.40

Finding the Fourth Proportional to 12,416.20, 18,624.30 and 10,083.40

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Solution

The fourth proportional to 12,416.20, 18,624.30 and 10,083.40 is: 15,125.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.20 : 18,624.30 = 10,083.40 : x
  2. Step 2: Convert to fraction form
    12,416.20/18,624.30 = 10,083.40/x
  3. Step 3: Cross multiply
    12,416.20x = 18,624.30 × 10,083.40
  4. Step 4: Simplify right side
    12,416.20x = 187,796,266.62
  5. Step 5: Solve for x
    x = 187,796,266.62/12,416.20
  6. Step 6: Final answer
    x = 15,125.10

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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.