Home / 13,722.87-20,587.38-4,362.84

Finding the Fourth Proportional to 13,722.87, 20,587.38 and 4,362.84

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Solution

The fourth proportional to 13,722.87, 20,587.38 and 4,362.84 is: 6,545.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.87 : 20,587.38 = 4,362.84 : x
  2. Step 2: Convert to fraction form
    13,722.87/20,587.38 = 4,362.84/x
  3. Step 3: Cross multiply
    13,722.87x = 20,587.38 × 4,362.84
  4. Step 4: Simplify right side
    13,722.87x = 89,819,444.96
  5. Step 5: Solve for x
    x = 89,819,444.96/13,722.87
  6. Step 6: Final answer
    x = 6,545.24

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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.