Home / 8,419.12-12,630.53-2,576.18

Finding the Fourth Proportional to 8,419.12, 12,630.53 and 2,576.18

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Solution

The fourth proportional to 8,419.12, 12,630.53 and 2,576.18 is: 3,864.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,419.12 : 12,630.53 = 2,576.18 : x
  2. Step 2: Convert to fraction form
    8,419.12/12,630.53 = 2,576.18/x
  3. Step 3: Cross multiply
    8,419.12x = 12,630.53 × 2,576.18
  4. Step 4: Simplify right side
    8,419.12x = 32,538,518.78
  5. Step 5: Solve for x
    x = 32,538,518.78/8,419.12
  6. Step 6: Final answer
    x = 3,864.84

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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.