Home / 11,327.14-15,630.78-6,291.07

Finding the Fourth Proportional to 11,327.14, 15,630.78 and 6,291.07

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Solution

The fourth proportional to 11,327.14, 15,630.78 and 6,291.07 is: 8,681.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,327.14 : 15,630.78 = 6,291.07 : x
  2. Step 2: Convert to fraction form
    11,327.14/15,630.78 = 6,291.07/x
  3. Step 3: Cross multiply
    11,327.14x = 15,630.78 × 6,291.07
  4. Step 4: Simplify right side
    11,327.14x = 98,334,292.06
  5. Step 5: Solve for x
    x = 98,334,292.06/11,327.14
  6. Step 6: Final answer
    x = 8,681.30

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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.