Home / 8,141.92-12,212.34-4,875.28

Finding the Fourth Proportional to 8,141.92, 12,212.34 and 4,875.28

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Solution

The fourth proportional to 8,141.92, 12,212.34 and 4,875.28 is: 7,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,141.92 : 12,212.34 = 4,875.28 : x
  2. Step 2: Convert to fraction form
    8,141.92/12,212.34 = 4,875.28/x
  3. Step 3: Cross multiply
    8,141.92x = 12,212.34 × 4,875.28
  4. Step 4: Simplify right side
    8,141.92x = 59,538,576.96
  5. Step 5: Solve for x
    x = 59,538,576.96/8,141.92
  6. Step 6: Final answer
    x = 7,312.60

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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.