Home / 11,256.47-15,519.49-7,713.53

Finding the Fourth Proportional to 11,256.47, 15,519.49 and 7,713.53

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Solution

The fourth proportional to 11,256.47, 15,519.49 and 7,713.53 is: 10,634.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.47 : 15,519.49 = 7,713.53 : x
  2. Step 2: Convert to fraction form
    11,256.47/15,519.49 = 7,713.53/x
  3. Step 3: Cross multiply
    11,256.47x = 15,519.49 × 7,713.53
  4. Step 4: Simplify right side
    11,256.47x = 119,709,954.82
  5. Step 5: Solve for x
    x = 119,709,954.82/11,256.47
  6. Step 6: Final answer
    x = 10,634.77

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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.