Home / 11,027.19-15,216.08-6,780.45

Finding the Fourth Proportional to 11,027.19, 15,216.08 and 6,780.45

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Solution

The fourth proportional to 11,027.19, 15,216.08 and 6,780.45 is: 9,356.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,027.19 : 15,216.08 = 6,780.45 : x
  2. Step 2: Convert to fraction form
    11,027.19/15,216.08 = 6,780.45/x
  3. Step 3: Cross multiply
    11,027.19x = 15,216.08 × 6,780.45
  4. Step 4: Simplify right side
    11,027.19x = 103,171,835.73
  5. Step 5: Solve for x
    x = 103,171,835.73/11,027.19
  6. Step 6: Final answer
    x = 9,356.13

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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.