Home / 8,099.32-12,143.64-3,931.06

Finding the Fourth Proportional to 8,099.32, 12,143.64 and 3,931.06

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Solution

The fourth proportional to 8,099.32, 12,143.64 and 3,931.06 is: 5,894.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.32 : 12,143.64 = 3,931.06 : x
  2. Step 2: Convert to fraction form
    8,099.32/12,143.64 = 3,931.06/x
  3. Step 3: Cross multiply
    8,099.32x = 12,143.64 × 3,931.06
  4. Step 4: Simplify right side
    8,099.32x = 47,737,377.46
  5. Step 5: Solve for x
    x = 47,737,377.46/8,099.32
  6. Step 6: Final answer
    x = 5,894.00

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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.