Home / 13,547.42-18,731.76-11,886.92

Finding the Fourth Proportional to 13,547.42, 18,731.76 and 11,886.92

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Solution

The fourth proportional to 13,547.42, 18,731.76 and 11,886.92 is: 16,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.42 : 18,731.76 = 11,886.92 : x
  2. Step 2: Convert to fraction form
    13,547.42/18,731.76 = 11,886.92/x
  3. Step 3: Cross multiply
    13,547.42x = 18,731.76 × 11,886.92
  4. Step 4: Simplify right side
    13,547.42x = 222,662,932.58
  5. Step 5: Solve for x
    x = 222,662,932.58/13,547.42
  6. Step 6: Final answer
    x = 16,435.82

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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.