Home / 13,703.24-20,555.27-5,385.35

Finding the Fourth Proportional to 13,703.24, 20,555.27 and 5,385.35

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Solution

The fourth proportional to 13,703.24, 20,555.27 and 5,385.35 is: 8,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.24 : 20,555.27 = 5,385.35 : x
  2. Step 2: Convert to fraction form
    13,703.24/20,555.27 = 5,385.35/x
  3. Step 3: Cross multiply
    13,703.24x = 20,555.27 × 5,385.35
  4. Step 4: Simplify right side
    13,703.24x = 110,697,367.95
  5. Step 5: Solve for x
    x = 110,697,367.95/13,703.24
  6. Step 6: Final answer
    x = 8,078.19

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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.