Home / 19,127.92-28,680.84-7,427.47

Finding the Fourth Proportional to 19,127.92, 28,680.84 and 7,427.47

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Solution

The fourth proportional to 19,127.92, 28,680.84 and 7,427.47 is: 11,136.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.92 : 28,680.84 = 7,427.47 : x
  2. Step 2: Convert to fraction form
    19,127.92/28,680.84 = 7,427.47/x
  3. Step 3: Cross multiply
    19,127.92x = 28,680.84 × 7,427.47
  4. Step 4: Simplify right side
    19,127.92x = 213,026,078.67
  5. Step 5: Solve for x
    x = 213,026,078.67/19,127.92
  6. Step 6: Final answer
    x = 11,136.92

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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.