Home / 13,813.47-20,723.09-4,578.75

Finding the Fourth Proportional to 13,813.47, 20,723.09 and 4,578.75

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Solution

The fourth proportional to 13,813.47, 20,723.09 and 4,578.75 is: 6,869.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813.47 : 20,723.09 = 4,578.75 : x
  2. Step 2: Convert to fraction form
    13,813.47/20,723.09 = 4,578.75/x
  3. Step 3: Cross multiply
    13,813.47x = 20,723.09 × 4,578.75
  4. Step 4: Simplify right side
    13,813.47x = 94,885,825.44
  5. Step 5: Solve for x
    x = 94,885,825.44/13,813.47
  6. Step 6: Final answer
    x = 6,869.08

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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.