Home / 13,005.20-19,496.40-7,727.20

Finding the Fourth Proportional to 13,005.20, 19,496.40 and 7,727.20

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Solution

The fourth proportional to 13,005.20, 19,496.40 and 7,727.20 is: 11,584.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.20 : 19,496.40 = 7,727.20 : x
  2. Step 2: Convert to fraction form
    13,005.20/19,496.40 = 7,727.20/x
  3. Step 3: Cross multiply
    13,005.20x = 19,496.40 × 7,727.20
  4. Step 4: Simplify right side
    13,005.20x = 150,652,582.08
  5. Step 5: Solve for x
    x = 150,652,582.08/13,005.20
  6. Step 6: Final answer
    x = 11,584.03

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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.