Home / 10,914.72-15,059.70-6,438.12

Finding the Fourth Proportional to 10,914.72, 15,059.70 and 6,438.12

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Solution

The fourth proportional to 10,914.72, 15,059.70 and 6,438.12 is: 8,883.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,914.72 : 15,059.70 = 6,438.12 : x
  2. Step 2: Convert to fraction form
    10,914.72/15,059.70 = 6,438.12/x
  3. Step 3: Cross multiply
    10,914.72x = 15,059.70 × 6,438.12
  4. Step 4: Simplify right side
    10,914.72x = 96,956,155.76
  5. Step 5: Solve for x
    x = 96,956,155.76/10,914.72
  6. Step 6: Final answer
    x = 8,883.06

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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.