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Finding the Fourth Proportional to 11,561.83, 15,955.31 and 6,256.67

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Solution

The fourth proportional to 11,561.83, 15,955.31 and 6,256.67 is: 8,634.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,561.83 : 15,955.31 = 6,256.67 : x
  2. Step 2: Convert to fraction form
    11,561.83/15,955.31 = 6,256.67/x
  3. Step 3: Cross multiply
    11,561.83x = 15,955.31 × 6,256.67
  4. Step 4: Simplify right side
    11,561.83x = 99,827,045.28
  5. Step 5: Solve for x
    x = 99,827,045.28/11,561.83
  6. Step 6: Final answer
    x = 8,634.19

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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.