Home / 8,675.90-13,015.20-2,830.70

Finding the Fourth Proportional to 8,675.90, 13,015.20 and 2,830.70

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Solution

The fourth proportional to 8,675.90, 13,015.20 and 2,830.70 is: 4,246.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.90 : 13,015.20 = 2,830.70 : x
  2. Step 2: Convert to fraction form
    8,675.90/13,015.20 = 2,830.70/x
  3. Step 3: Cross multiply
    8,675.90x = 13,015.20 × 2,830.70
  4. Step 4: Simplify right side
    8,675.90x = 36,842,126.64
  5. Step 5: Solve for x
    x = 36,842,126.64/8,675.90
  6. Step 6: Final answer
    x = 4,246.49

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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.