Home / 11,326.15-15,628.35-6,290.29

Finding the Fourth Proportional to 11,326.15, 15,628.35 and 6,290.29

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Solution

The fourth proportional to 11,326.15, 15,628.35 and 6,290.29 is: 8,679.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.15 : 15,628.35 = 6,290.29 : x
  2. Step 2: Convert to fraction form
    11,326.15/15,628.35 = 6,290.29/x
  3. Step 3: Cross multiply
    11,326.15x = 15,628.35 × 6,290.29
  4. Step 4: Simplify right side
    11,326.15x = 98,306,853.72
  5. Step 5: Solve for x
    x = 98,306,853.72/11,326.15
  6. Step 6: Final answer
    x = 8,679.64

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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.