Home / 19,504.32-26,915.84-11,120.72

Finding the Fourth Proportional to 19,504.32, 26,915.84 and 11,120.72

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Solution

The fourth proportional to 19,504.32, 26,915.84 and 11,120.72 is: 15,346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,504.32 : 26,915.84 = 11,120.72 : x
  2. Step 2: Convert to fraction form
    19,504.32/26,915.84 = 11,120.72/x
  3. Step 3: Cross multiply
    19,504.32x = 26,915.84 × 11,120.72
  4. Step 4: Simplify right side
    19,504.32x = 299,323,520.20
  5. Step 5: Solve for x
    x = 299,323,520.20/19,504.32
  6. Step 6: Final answer
    x = 15,346.52

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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.