Home / 15,635.02-21,576.63-8,561.29

Finding the Fourth Proportional to 15,635.02, 21,576.63 and 8,561.29

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Solution

The fourth proportional to 15,635.02, 21,576.63 and 8,561.29 is: 11,814.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,635.02 : 21,576.63 = 8,561.29 : x
  2. Step 2: Convert to fraction form
    15,635.02/21,576.63 = 8,561.29/x
  3. Step 3: Cross multiply
    15,635.02x = 21,576.63 × 8,561.29
  4. Step 4: Simplify right side
    15,635.02x = 184,723,786.65
  5. Step 5: Solve for x
    x = 184,723,786.65/15,635.02
  6. Step 6: Final answer
    x = 11,814.75

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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.