Home / 13,557.95-20,345.57-5,766.75

Finding the Fourth Proportional to 13,557.95, 20,345.57 and 5,766.75

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Solution

The fourth proportional to 13,557.95, 20,345.57 and 5,766.75 is: 8,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.95 : 20,345.57 = 5,766.75 : x
  2. Step 2: Convert to fraction form
    13,557.95/20,345.57 = 5,766.75/x
  3. Step 3: Cross multiply
    13,557.95x = 20,345.57 × 5,766.75
  4. Step 4: Simplify right side
    13,557.95x = 117,327,786.96
  5. Step 5: Solve for x
    x = 117,327,786.96/13,557.95
  6. Step 6: Final answer
    x = 8,653.80

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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.