Home / 14,311.27-19,750.69-7,938.49

Finding the Fourth Proportional to 14,311.27, 19,750.69 and 7,938.49

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Solution

The fourth proportional to 14,311.27, 19,750.69 and 7,938.49 is: 10,955.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311.27 : 19,750.69 = 7,938.49 : x
  2. Step 2: Convert to fraction form
    14,311.27/19,750.69 = 7,938.49/x
  3. Step 3: Cross multiply
    14,311.27x = 19,750.69 × 7,938.49
  4. Step 4: Simplify right side
    14,311.27x = 156,790,655.06
  5. Step 5: Solve for x
    x = 156,790,655.06/14,311.27
  6. Step 6: Final answer
    x = 10,955.75

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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.