Home / 10,741.32-16,097.40-7,978.41

Finding the Fourth Proportional to 10,741.32, 16,097.40 and 7,978.41

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Solution

The fourth proportional to 10,741.32, 16,097.40 and 7,978.41 is: 11,956.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,741.32 : 16,097.40 = 7,978.41 : x
  2. Step 2: Convert to fraction form
    10,741.32/16,097.40 = 7,978.41/x
  3. Step 3: Cross multiply
    10,741.32x = 16,097.40 × 7,978.41
  4. Step 4: Simplify right side
    10,741.32x = 128,431,657.13
  5. Step 5: Solve for x
    x = 128,431,657.13/10,741.32
  6. Step 6: Final answer
    x = 11,956.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.