Home / 11,453.47-15,805.79-6,977.22

Finding the Fourth Proportional to 11,453.47, 15,805.79 and 6,977.22

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Solution

The fourth proportional to 11,453.47, 15,805.79 and 6,977.22 is: 9,628.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,453.47 : 15,805.79 = 6,977.22 : x
  2. Step 2: Convert to fraction form
    11,453.47/15,805.79 = 6,977.22/x
  3. Step 3: Cross multiply
    11,453.47x = 15,805.79 × 6,977.22
  4. Step 4: Simplify right side
    11,453.47x = 110,280,434.68
  5. Step 5: Solve for x
    x = 110,280,434.68/11,453.47
  6. Step 6: Final answer
    x = 9,628.56

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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.