Home / 8,830.76-13,228.80-5,125.20

Finding the Fourth Proportional to 8,830.76, 13,228.80 and 5,125.20

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Solution

The fourth proportional to 8,830.76, 13,228.80 and 5,125.20 is: 7,677.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,830.76 : 13,228.80 = 5,125.20 : x
  2. Step 2: Convert to fraction form
    8,830.76/13,228.80 = 5,125.20/x
  3. Step 3: Cross multiply
    8,830.76x = 13,228.80 × 5,125.20
  4. Step 4: Simplify right side
    8,830.76x = 67,800,245.76
  5. Step 5: Solve for x
    x = 67,800,245.76/8,830.76
  6. Step 6: Final answer
    x = 7,677.74

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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.