Home / 12,239.04-18,358.40-3,005.12

Finding the Fourth Proportional to 12,239.04, 18,358.40 and 3,005.12

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Solution

The fourth proportional to 12,239.04, 18,358.40 and 3,005.12 is: 4,507.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.04 : 18,358.40 = 3,005.12 : x
  2. Step 2: Convert to fraction form
    12,239.04/18,358.40 = 3,005.12/x
  3. Step 3: Cross multiply
    12,239.04x = 18,358.40 × 3,005.12
  4. Step 4: Simplify right side
    12,239.04x = 55,169,195.01
  5. Step 5: Solve for x
    x = 55,169,195.01/12,239.04
  6. Step 6: Final answer
    x = 4,507.64

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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.