Home / 14,545.20-21,828.60-5,786.40

Finding the Fourth Proportional to 14,545.20, 21,828.60 and 5,786.40

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Solution

The fourth proportional to 14,545.20, 21,828.60 and 5,786.40 is: 8,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,545.20 : 21,828.60 = 5,786.40 : x
  2. Step 2: Convert to fraction form
    14,545.20/21,828.60 = 5,786.40/x
  3. Step 3: Cross multiply
    14,545.20x = 21,828.60 × 5,786.40
  4. Step 4: Simplify right side
    14,545.20x = 126,309,011.04
  5. Step 5: Solve for x
    x = 126,309,011.04/14,545.20
  6. Step 6: Final answer
    x = 8,683.90

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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.