Home / 11,867.90-16,377.17-6,490.19

Finding the Fourth Proportional to 11,867.90, 16,377.17 and 6,490.19

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Solution

The fourth proportional to 11,867.90, 16,377.17 and 6,490.19 is: 8,956.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.90 : 16,377.17 = 6,490.19 : x
  2. Step 2: Convert to fraction form
    11,867.90/16,377.17 = 6,490.19/x
  3. Step 3: Cross multiply
    11,867.90x = 16,377.17 × 6,490.19
  4. Step 4: Simplify right side
    11,867.90x = 106,290,830.63
  5. Step 5: Solve for x
    x = 106,290,830.63/11,867.90
  6. Step 6: Final answer
    x = 8,956.17

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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.