Home / 14,545.12-21,812.80-5,777.68

Finding the Fourth Proportional to 14,545.12, 21,812.80 and 5,777.68

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Solution

The fourth proportional to 14,545.12, 21,812.80 and 5,777.68 is: 8,664.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,545.12 : 21,812.80 = 5,777.68 : x
  2. Step 2: Convert to fraction form
    14,545.12/21,812.80 = 5,777.68/x
  3. Step 3: Cross multiply
    14,545.12x = 21,812.80 × 5,777.68
  4. Step 4: Simplify right side
    14,545.12x = 126,027,378.30
  5. Step 5: Solve for x
    x = 126,027,378.30/14,545.12
  6. Step 6: Final answer
    x = 8,664.58

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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.