Home / 13,713.37-20,565.50-5,391.23

Finding the Fourth Proportional to 13,713.37, 20,565.50 and 5,391.23

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Solution

The fourth proportional to 13,713.37, 20,565.50 and 5,391.23 is: 8,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713.37 : 20,565.50 = 5,391.23 : x
  2. Step 2: Convert to fraction form
    13,713.37/20,565.50 = 5,391.23/x
  3. Step 3: Cross multiply
    13,713.37x = 20,565.50 × 5,391.23
  4. Step 4: Simplify right side
    13,713.37x = 110,873,210.78
  5. Step 5: Solve for x
    x = 110,873,210.78/13,713.37
  6. Step 6: Final answer
    x = 8,085.05

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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.