Home / 9,938.43-13,715.40-5,958.78

Finding the Fourth Proportional to 9,938.43, 13,715.40 and 5,958.78

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Solution

The fourth proportional to 9,938.43, 13,715.40 and 5,958.78 is: 8,223.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.43 : 13,715.40 = 5,958.78 : x
  2. Step 2: Convert to fraction form
    9,938.43/13,715.40 = 5,958.78/x
  3. Step 3: Cross multiply
    9,938.43x = 13,715.40 × 5,958.78
  4. Step 4: Simplify right side
    9,938.43x = 81,727,051.21
  5. Step 5: Solve for x
    x = 81,727,051.21/9,938.43
  6. Step 6: Final answer
    x = 8,223.34

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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.