Home / 19,515.22-26,920.86-11,963.32

Finding the Fourth Proportional to 19,515.22, 26,920.86 and 11,963.32

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Solution

The fourth proportional to 19,515.22, 26,920.86 and 11,963.32 is: 16,503.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515.22 : 26,920.86 = 11,963.32 : x
  2. Step 2: Convert to fraction form
    19,515.22/26,920.86 = 11,963.32/x
  3. Step 3: Cross multiply
    19,515.22x = 26,920.86 × 11,963.32
  4. Step 4: Simplify right side
    19,515.22x = 322,062,750.69
  5. Step 5: Solve for x
    x = 322,062,750.69/19,515.22
  6. Step 6: Final answer
    x = 16,503.16

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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.