Home / 11,030.78-15,221.54-6,555.66

Finding the Fourth Proportional to 11,030.78, 15,221.54 and 6,555.66

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Solution

The fourth proportional to 11,030.78, 15,221.54 and 6,555.66 is: 9,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,030.78 : 15,221.54 = 6,555.66 : x
  2. Step 2: Convert to fraction form
    11,030.78/15,221.54 = 6,555.66/x
  3. Step 3: Cross multiply
    11,030.78x = 15,221.54 × 6,555.66
  4. Step 4: Simplify right side
    11,030.78x = 99,787,240.92
  5. Step 5: Solve for x
    x = 99,787,240.92/11,030.78
  6. Step 6: Final answer
    x = 9,046.25

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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.