Home / 8,830.75-13,228.81-5,125.21

Finding the Fourth Proportional to 8,830.75, 13,228.81 and 5,125.21

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Solution

The fourth proportional to 8,830.75, 13,228.81 and 5,125.21 is: 7,677.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,830.75 : 13,228.81 = 5,125.21 : x
  2. Step 2: Convert to fraction form
    8,830.75/13,228.81 = 5,125.21/x
  3. Step 3: Cross multiply
    8,830.75x = 13,228.81 × 5,125.21
  4. Step 4: Simplify right side
    8,830.75x = 67,800,429.30
  5. Step 5: Solve for x
    x = 67,800,429.30/8,830.75
  6. Step 6: Final answer
    x = 7,677.77

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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.