Home / 12,239.04-18,355.89-5,658.99

Finding the Fourth Proportional to 12,239.04, 18,355.89 and 5,658.99

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Solution

The fourth proportional to 12,239.04, 18,355.89 and 5,658.99 is: 8,487.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.04 : 18,355.89 = 5,658.99 : x
  2. Step 2: Convert to fraction form
    12,239.04/18,355.89 = 5,658.99/x
  3. Step 3: Cross multiply
    12,239.04x = 18,355.89 × 5,658.99
  4. Step 4: Simplify right side
    12,239.04x = 103,875,797.95
  5. Step 5: Solve for x
    x = 103,875,797.95/12,239.04
  6. Step 6: Final answer
    x = 8,487.25

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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.