Home / 15,634.86-21,576.36-8,561.16

Finding the Fourth Proportional to 15,634.86, 21,576.36 and 8,561.16

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Solution

The fourth proportional to 15,634.86, 21,576.36 and 8,561.16 is: 11,814.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,634.86 : 21,576.36 = 8,561.16 : x
  2. Step 2: Convert to fraction form
    15,634.86/21,576.36 = 8,561.16/x
  3. Step 3: Cross multiply
    15,634.86x = 21,576.36 × 8,561.16
  4. Step 4: Simplify right side
    15,634.86x = 184,718,670.18
  5. Step 5: Solve for x
    x = 184,718,670.18/15,634.86
  6. Step 6: Final answer
    x = 11,814.54

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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.