Home / 19,278.08-28,915.86-6,131.24

Finding the Fourth Proportional to 19,278.08, 28,915.86 and 6,131.24

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Solution

The fourth proportional to 19,278.08, 28,915.86 and 6,131.24 is: 9,196.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.08 : 28,915.86 = 6,131.24 : x
  2. Step 2: Convert to fraction form
    19,278.08/28,915.86 = 6,131.24/x
  3. Step 3: Cross multiply
    19,278.08x = 28,915.86 × 6,131.24
  4. Step 4: Simplify right side
    19,278.08x = 177,290,077.47
  5. Step 5: Solve for x
    x = 177,290,077.47/19,278.08
  6. Step 6: Final answer
    x = 9,196.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.