Home / 12,886.20-19,326.87-6,308.19

Finding the Fourth Proportional to 12,886.20, 19,326.87 and 6,308.19

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Solution

The fourth proportional to 12,886.20, 19,326.87 and 6,308.19 is: 9,461.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,886.20 : 19,326.87 = 6,308.19 : x
  2. Step 2: Convert to fraction form
    12,886.20/19,326.87 = 6,308.19/x
  3. Step 3: Cross multiply
    12,886.20x = 19,326.87 × 6,308.19
  4. Step 4: Simplify right side
    12,886.20x = 121,917,568.07
  5. Step 5: Solve for x
    x = 121,917,568.07/12,886.20
  6. Step 6: Final answer
    x = 9,461.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.