Home / 11,891.19-16,411.88-6,854.51

Finding the Fourth Proportional to 11,891.19, 16,411.88 and 6,854.51

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Solution

The fourth proportional to 11,891.19, 16,411.88 and 6,854.51 is: 9,460.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.19 : 16,411.88 = 6,854.51 : x
  2. Step 2: Convert to fraction form
    11,891.19/16,411.88 = 6,854.51/x
  3. Step 3: Cross multiply
    11,891.19x = 16,411.88 × 6,854.51
  4. Step 4: Simplify right side
    11,891.19x = 112,495,395.58
  5. Step 5: Solve for x
    x = 112,495,395.58/11,891.19
  6. Step 6: Final answer
    x = 9,460.40

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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.