Home / 12,807.08-19,212.61-5,411.58

Finding the Fourth Proportional to 12,807.08, 19,212.61 and 5,411.58

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Solution

The fourth proportional to 12,807.08, 19,212.61 and 5,411.58 is: 8,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,807.08 : 19,212.61 = 5,411.58 : x
  2. Step 2: Convert to fraction form
    12,807.08/19,212.61 = 5,411.58/x
  3. Step 3: Cross multiply
    12,807.08x = 19,212.61 × 5,411.58
  4. Step 4: Simplify right side
    12,807.08x = 103,970,576.02
  5. Step 5: Solve for x
    x = 103,970,576.02/12,807.08
  6. Step 6: Final answer
    x = 8,118.21

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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.