Home / 13,293.75-18,337.26-7,912.57

Finding the Fourth Proportional to 13,293.75, 18,337.26 and 7,912.57

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Solution

The fourth proportional to 13,293.75, 18,337.26 and 7,912.57 is: 10,914.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.75 : 18,337.26 = 7,912.57 : x
  2. Step 2: Convert to fraction form
    13,293.75/18,337.26 = 7,912.57/x
  3. Step 3: Cross multiply
    13,293.75x = 18,337.26 × 7,912.57
  4. Step 4: Simplify right side
    13,293.75x = 145,094,813.80
  5. Step 5: Solve for x
    x = 145,094,813.80/13,293.75
  6. Step 6: Final answer
    x = 10,914.51

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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.