Home / 11,575.53-15,980.67-7,327.28

Finding the Fourth Proportional to 11,575.53, 15,980.67 and 7,327.28

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Solution

The fourth proportional to 11,575.53, 15,980.67 and 7,327.28 is: 10,115.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,575.53 : 15,980.67 = 7,327.28 : x
  2. Step 2: Convert to fraction form
    11,575.53/15,980.67 = 7,327.28/x
  3. Step 3: Cross multiply
    11,575.53x = 15,980.67 × 7,327.28
  4. Step 4: Simplify right side
    11,575.53x = 117,094,883.63
  5. Step 5: Solve for x
    x = 117,094,883.63/11,575.53
  6. Step 6: Final answer
    x = 10,115.73

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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.