Home / 7,938.20-11,885.43-4,023.47

Finding the Fourth Proportional to 7,938.20, 11,885.43 and 4,023.47

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Solution

The fourth proportional to 7,938.20, 11,885.43 and 4,023.47 is: 6,024.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.20 : 11,885.43 = 4,023.47 : x
  2. Step 2: Convert to fraction form
    7,938.20/11,885.43 = 4,023.47/x
  3. Step 3: Cross multiply
    7,938.20x = 11,885.43 × 4,023.47
  4. Step 4: Simplify right side
    7,938.20x = 47,820,671.04
  5. Step 5: Solve for x
    x = 47,820,671.04/7,938.20
  6. Step 6: Final answer
    x = 6,024.12

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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.