Home / 11,326.68-15,630.44-6,290.78

Finding the Fourth Proportional to 11,326.68, 15,630.44 and 6,290.78

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Solution

The fourth proportional to 11,326.68, 15,630.44 and 6,290.78 is: 8,681.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.68 : 15,630.44 = 6,290.78 : x
  2. Step 2: Convert to fraction form
    11,326.68/15,630.44 = 6,290.78/x
  3. Step 3: Cross multiply
    11,326.68x = 15,630.44 × 6,290.78
  4. Step 4: Simplify right side
    11,326.68x = 98,327,549.74
  5. Step 5: Solve for x
    x = 98,327,549.74/11,326.68
  6. Step 6: Final answer
    x = 8,681.06

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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.