Home / 13,899.90-20,847.68-5,132.77

Finding the Fourth Proportional to 13,899.90, 20,847.68 and 5,132.77

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Solution

The fourth proportional to 13,899.90, 20,847.68 and 5,132.77 is: 7,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.90 : 20,847.68 = 5,132.77 : x
  2. Step 2: Convert to fraction form
    13,899.90/20,847.68 = 5,132.77/x
  3. Step 3: Cross multiply
    13,899.90x = 20,847.68 × 5,132.77
  4. Step 4: Simplify right side
    13,899.90x = 107,006,287.94
  5. Step 5: Solve for x
    x = 107,006,287.94/13,899.90
  6. Step 6: Final answer
    x = 7,698.35

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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.