Home / 13,289.20-19,933.80-4,055.20

Finding the Fourth Proportional to 13,289.20, 19,933.80 and 4,055.20

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Solution

The fourth proportional to 13,289.20, 19,933.80 and 4,055.20 is: 6,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.20 : 19,933.80 = 4,055.20 : x
  2. Step 2: Convert to fraction form
    13,289.20/19,933.80 = 4,055.20/x
  3. Step 3: Cross multiply
    13,289.20x = 19,933.80 × 4,055.20
  4. Step 4: Simplify right side
    13,289.20x = 80,835,545.76
  5. Step 5: Solve for x
    x = 80,835,545.76/13,289.20
  6. Step 6: Final answer
    x = 6,082.80

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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.