Home / 15,349.24-21,181.74-8,634.87

Finding the Fourth Proportional to 15,349.24, 21,181.74 and 8,634.87

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Solution

The fourth proportional to 15,349.24, 21,181.74 and 8,634.87 is: 11,916.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.24 : 21,181.74 = 8,634.87 : x
  2. Step 2: Convert to fraction form
    15,349.24/21,181.74 = 8,634.87/x
  3. Step 3: Cross multiply
    15,349.24x = 21,181.74 × 8,634.87
  4. Step 4: Simplify right side
    15,349.24x = 182,901,571.27
  5. Step 5: Solve for x
    x = 182,901,571.27/15,349.24
  6. Step 6: Final answer
    x = 11,916.00

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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.