Home / 15,434.09-21,299.02-8,360.54

Finding the Fourth Proportional to 15,434.09, 21,299.02 and 8,360.54

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Solution

The fourth proportional to 15,434.09, 21,299.02 and 8,360.54 is: 11,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.09 : 21,299.02 = 8,360.54 : x
  2. Step 2: Convert to fraction form
    15,434.09/21,299.02 = 8,360.54/x
  3. Step 3: Cross multiply
    15,434.09x = 21,299.02 × 8,360.54
  4. Step 4: Simplify right side
    15,434.09x = 178,071,181.27
  5. Step 5: Solve for x
    x = 178,071,181.27/15,434.09
  6. Step 6: Final answer
    x = 11,537.53

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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.