Home / 13,868.86-20,775.77-6,463.12

Finding the Fourth Proportional to 13,868.86, 20,775.77 and 6,463.12

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Solution

The fourth proportional to 13,868.86, 20,775.77 and 6,463.12 is: 9,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.86 : 20,775.77 = 6,463.12 : x
  2. Step 2: Convert to fraction form
    13,868.86/20,775.77 = 6,463.12/x
  3. Step 3: Cross multiply
    13,868.86x = 20,775.77 × 6,463.12
  4. Step 4: Simplify right side
    13,868.86x = 134,276,262.29
  5. Step 5: Solve for x
    x = 134,276,262.29/13,868.86
  6. Step 6: Final answer
    x = 9,681.85

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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.