Home / 11,119.50-15,345.39-6,151.50

Finding the Fourth Proportional to 11,119.50, 15,345.39 and 6,151.50

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Solution

The fourth proportional to 11,119.50, 15,345.39 and 6,151.50 is: 8,489.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.50 : 15,345.39 = 6,151.50 : x
  2. Step 2: Convert to fraction form
    11,119.50/15,345.39 = 6,151.50/x
  3. Step 3: Cross multiply
    11,119.50x = 15,345.39 × 6,151.50
  4. Step 4: Simplify right side
    11,119.50x = 94,397,166.59
  5. Step 5: Solve for x
    x = 94,397,166.59/11,119.50
  6. Step 6: Final answer
    x = 8,489.34

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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.