Home / 13,116.60-19,674.90-6,874.20

Finding the Fourth Proportional to 13,116.60, 19,674.90 and 6,874.20

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Solution

The fourth proportional to 13,116.60, 19,674.90 and 6,874.20 is: 10,311.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116.60 : 19,674.90 = 6,874.20 : x
  2. Step 2: Convert to fraction form
    13,116.60/19,674.90 = 6,874.20/x
  3. Step 3: Cross multiply
    13,116.60x = 19,674.90 × 6,874.20
  4. Step 4: Simplify right side
    13,116.60x = 135,249,197.58
  5. Step 5: Solve for x
    x = 135,249,197.58/13,116.60
  6. Step 6: Final answer
    x = 10,311.30

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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.