Home / 11,878.05-16,391.45-6,500.46

Finding the Fourth Proportional to 11,878.05, 16,391.45 and 6,500.46

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Solution

The fourth proportional to 11,878.05, 16,391.45 and 6,500.46 is: 8,970.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,878.05 : 16,391.45 = 6,500.46 : x
  2. Step 2: Convert to fraction form
    11,878.05/16,391.45 = 6,500.46/x
  3. Step 3: Cross multiply
    11,878.05x = 16,391.45 × 6,500.46
  4. Step 4: Simplify right side
    11,878.05x = 106,551,981.32
  5. Step 5: Solve for x
    x = 106,551,981.32/11,878.05
  6. Step 6: Final answer
    x = 8,970.49

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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.