Home / 8,293.19-12,423.12-4,120.58

Finding the Fourth Proportional to 8,293.19, 12,423.12 and 4,120.58

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Solution

The fourth proportional to 8,293.19, 12,423.12 and 4,120.58 is: 6,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,293.19 : 12,423.12 = 4,120.58 : x
  2. Step 2: Convert to fraction form
    8,293.19/12,423.12 = 4,120.58/x
  3. Step 3: Cross multiply
    8,293.19x = 12,423.12 × 4,120.58
  4. Step 4: Simplify right side
    8,293.19x = 51,190,397.69
  5. Step 5: Solve for x
    x = 51,190,397.69/8,293.19
  6. Step 6: Final answer
    x = 6,172.59

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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.