Home / 8,906.19-12,291.46-5,129.50

Finding the Fourth Proportional to 8,906.19, 12,291.46 and 5,129.50

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Solution

The fourth proportional to 8,906.19, 12,291.46 and 5,129.50 is: 7,079.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.19 : 12,291.46 = 5,129.50 : x
  2. Step 2: Convert to fraction form
    8,906.19/12,291.46 = 5,129.50/x
  3. Step 3: Cross multiply
    8,906.19x = 12,291.46 × 5,129.50
  4. Step 4: Simplify right side
    8,906.19x = 63,049,044.07
  5. Step 5: Solve for x
    x = 63,049,044.07/8,906.19
  6. Step 6: Final answer
    x = 7,079.24

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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.