Home / 11,256.09-15,518.97-7,713.15

Finding the Fourth Proportional to 11,256.09, 15,518.97 and 7,713.15

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Solution

The fourth proportional to 11,256.09, 15,518.97 and 7,713.15 is: 10,634.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.09 : 15,518.97 = 7,713.15 : x
  2. Step 2: Convert to fraction form
    11,256.09/15,518.97 = 7,713.15/x
  3. Step 3: Cross multiply
    11,256.09x = 15,518.97 × 7,713.15
  4. Step 4: Simplify right side
    11,256.09x = 119,700,143.46
  5. Step 5: Solve for x
    x = 119,700,143.46/11,256.09
  6. Step 6: Final answer
    x = 10,634.26

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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.