Home / 11,891.40-16,409.43-6,585.90

Finding the Fourth Proportional to 11,891.40, 16,409.43 and 6,585.90

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Solution

The fourth proportional to 11,891.40, 16,409.43 and 6,585.90 is: 9,088.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.40 : 16,409.43 = 6,585.90 : x
  2. Step 2: Convert to fraction form
    11,891.40/16,409.43 = 6,585.90/x
  3. Step 3: Cross multiply
    11,891.40x = 16,409.43 × 6,585.90
  4. Step 4: Simplify right side
    11,891.40x = 108,070,865.04
  5. Step 5: Solve for x
    x = 108,070,865.04/11,891.40
  6. Step 6: Final answer
    x = 9,088.15

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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.