Home / 11,290.79-15,581.43-6,255.50

Finding the Fourth Proportional to 11,290.79, 15,581.43 and 6,255.50

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Solution

The fourth proportional to 11,290.79, 15,581.43 and 6,255.50 is: 8,632.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.79 : 15,581.43 = 6,255.50 : x
  2. Step 2: Convert to fraction form
    11,290.79/15,581.43 = 6,255.50/x
  3. Step 3: Cross multiply
    11,290.79x = 15,581.43 × 6,255.50
  4. Step 4: Simplify right side
    11,290.79x = 97,469,557.46
  5. Step 5: Solve for x
    x = 97,469,557.46/11,290.79
  6. Step 6: Final answer
    x = 8,632.66

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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.