Home / 15,295.64-21,079.36-11,933.12

Finding the Fourth Proportional to 15,295.64, 21,079.36 and 11,933.12

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Solution

The fourth proportional to 15,295.64, 21,079.36 and 11,933.12 is: 16,445.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.64 : 21,079.36 = 11,933.12 : x
  2. Step 2: Convert to fraction form
    15,295.64/21,079.36 = 11,933.12/x
  3. Step 3: Cross multiply
    15,295.64x = 21,079.36 × 11,933.12
  4. Step 4: Simplify right side
    15,295.64x = 251,542,532.40
  5. Step 5: Solve for x
    x = 251,542,532.40/15,295.64
  6. Step 6: Final answer
    x = 16,445.37

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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.