Home / 11,430.20-15,773.55-6,394.43

Finding the Fourth Proportional to 11,430.20, 15,773.55 and 6,394.43

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Solution

The fourth proportional to 11,430.20, 15,773.55 and 6,394.43 is: 8,824.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.20 : 15,773.55 = 6,394.43 : x
  2. Step 2: Convert to fraction form
    11,430.20/15,773.55 = 6,394.43/x
  3. Step 3: Cross multiply
    11,430.20x = 15,773.55 × 6,394.43
  4. Step 4: Simplify right side
    11,430.20x = 100,862,782.46
  5. Step 5: Solve for x
    x = 100,862,782.46/11,430.20
  6. Step 6: Final answer
    x = 8,824.24

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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.