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Finding the Fourth Proportional to 15,795.08, 21,797.08 and 8,721.44

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Solution

The fourth proportional to 15,795.08, 21,797.08 and 8,721.44 is: 12,035.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,795.08 : 21,797.08 = 8,721.44 : x
  2. Step 2: Convert to fraction form
    15,795.08/21,797.08 = 8,721.44/x
  3. Step 3: Cross multiply
    15,795.08x = 21,797.08 × 8,721.44
  4. Step 4: Simplify right side
    15,795.08x = 190,101,925.40
  5. Step 5: Solve for x
    x = 190,101,925.40/15,795.08
  6. Step 6: Final answer
    x = 12,035.52

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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.