Home / 13,559.20-20,339.61-5,239.18

Finding the Fourth Proportional to 13,559.20, 20,339.61 and 5,239.18

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Solution

The fourth proportional to 13,559.20, 20,339.61 and 5,239.18 is: 7,859.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.20 : 20,339.61 = 5,239.18 : x
  2. Step 2: Convert to fraction form
    13,559.20/20,339.61 = 5,239.18/x
  3. Step 3: Cross multiply
    13,559.20x = 20,339.61 × 5,239.18
  4. Step 4: Simplify right side
    13,559.20x = 106,562,883.70
  5. Step 5: Solve for x
    x = 106,562,883.70/13,559.20
  6. Step 6: Final answer
    x = 7,859.08

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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.