Home / 11,256.85-15,534.99-6,781.99

Finding the Fourth Proportional to 11,256.85, 15,534.99 and 6,781.99

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Solution

The fourth proportional to 11,256.85, 15,534.99 and 6,781.99 is: 9,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.85 : 15,534.99 = 6,781.99 : x
  2. Step 2: Convert to fraction form
    11,256.85/15,534.99 = 6,781.99/x
  3. Step 3: Cross multiply
    11,256.85x = 15,534.99 × 6,781.99
  4. Step 4: Simplify right side
    11,256.85x = 105,358,146.83
  5. Step 5: Solve for x
    x = 105,358,146.83/11,256.85
  6. Step 6: Final answer
    x = 9,359.47

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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.