Home / 15,434.13-21,299.10-8,360.60

Finding the Fourth Proportional to 15,434.13, 21,299.10 and 8,360.60

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Solution

The fourth proportional to 15,434.13, 21,299.10 and 8,360.60 is: 11,537.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.13 : 21,299.10 = 8,360.60 : x
  2. Step 2: Convert to fraction form
    15,434.13/21,299.10 = 8,360.60/x
  3. Step 3: Cross multiply
    15,434.13x = 21,299.10 × 8,360.60
  4. Step 4: Simplify right side
    15,434.13x = 178,073,255.46
  5. Step 5: Solve for x
    x = 178,073,255.46/15,434.13
  6. Step 6: Final answer
    x = 11,537.63

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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.