Home / 11,327.14-15,631.05-6,291.55

Finding the Fourth Proportional to 11,327.14, 15,631.05 and 6,291.55

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Solution

The fourth proportional to 11,327.14, 15,631.05 and 6,291.55 is: 8,682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,327.14 : 15,631.05 = 6,291.55 : x
  2. Step 2: Convert to fraction form
    11,327.14/15,631.05 = 6,291.55/x
  3. Step 3: Cross multiply
    11,327.14x = 15,631.05 × 6,291.55
  4. Step 4: Simplify right side
    11,327.14x = 98,343,532.63
  5. Step 5: Solve for x
    x = 98,343,532.63/11,327.14
  6. Step 6: Final answer
    x = 8,682.12

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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.