Home / 11,326.89-15,631.32-6,291.58

Finding the Fourth Proportional to 11,326.89, 15,631.32 and 6,291.58

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Solution

The fourth proportional to 11,326.89, 15,631.32 and 6,291.58 is: 8,682.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.89 : 15,631.32 = 6,291.58 : x
  2. Step 2: Convert to fraction form
    11,326.89/15,631.32 = 6,291.58/x
  3. Step 3: Cross multiply
    11,326.89x = 15,631.32 × 6,291.58
  4. Step 4: Simplify right side
    11,326.89x = 98,345,700.29
  5. Step 5: Solve for x
    x = 98,345,700.29/11,326.89
  6. Step 6: Final answer
    x = 8,682.50

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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.