Home / 13,565.09-20,348.89-4,205.18

Finding the Fourth Proportional to 13,565.09, 20,348.89 and 4,205.18

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Solution

The fourth proportional to 13,565.09, 20,348.89 and 4,205.18 is: 6,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.09 : 20,348.89 = 4,205.18 : x
  2. Step 2: Convert to fraction form
    13,565.09/20,348.89 = 4,205.18/x
  3. Step 3: Cross multiply
    13,565.09x = 20,348.89 × 4,205.18
  4. Step 4: Simplify right side
    13,565.09x = 85,570,632.99
  5. Step 5: Solve for x
    x = 85,570,632.99/13,565.09
  6. Step 6: Final answer
    x = 6,308.15

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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.