Home / 8,949.15-12,349.80-5,411.34

Finding the Fourth Proportional to 8,949.15, 12,349.80 and 5,411.34

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Solution

The fourth proportional to 8,949.15, 12,349.80 and 5,411.34 is: 7,467.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.15 : 12,349.80 = 5,411.34 : x
  2. Step 2: Convert to fraction form
    8,949.15/12,349.80 = 5,411.34/x
  3. Step 3: Cross multiply
    8,949.15x = 12,349.80 × 5,411.34
  4. Step 4: Simplify right side
    8,949.15x = 66,828,966.73
  5. Step 5: Solve for x
    x = 66,828,966.73/8,949.15
  6. Step 6: Final answer
    x = 7,467.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.