Home / 16,816.60-25,224.90-5,128.30

Finding the Fourth Proportional to 16,816.60, 25,224.90 and 5,128.30

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Solution

The fourth proportional to 16,816.60, 25,224.90 and 5,128.30 is: 7,692.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,816.60 : 25,224.90 = 5,128.30 : x
  2. Step 2: Convert to fraction form
    16,816.60/25,224.90 = 5,128.30/x
  3. Step 3: Cross multiply
    16,816.60x = 25,224.90 × 5,128.30
  4. Step 4: Simplify right side
    16,816.60x = 129,360,854.67
  5. Step 5: Solve for x
    x = 129,360,854.67/16,816.60
  6. Step 6: Final answer
    x = 7,692.45

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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.