Home / 10,912.31-16,368.43-7,213.71

Finding the Fourth Proportional to 10,912.31, 16,368.43 and 7,213.71

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Solution

The fourth proportional to 10,912.31, 16,368.43 and 7,213.71 is: 10,820.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.31 : 16,368.43 = 7,213.71 : x
  2. Step 2: Convert to fraction form
    10,912.31/16,368.43 = 7,213.71/x
  3. Step 3: Cross multiply
    10,912.31x = 16,368.43 × 7,213.71
  4. Step 4: Simplify right side
    10,912.31x = 118,077,107.18
  5. Step 5: Solve for x
    x = 118,077,107.18/10,912.31
  6. Step 6: Final answer
    x = 10,820.54

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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.