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Finding the Fourth Proportional to 15,197.06, 20,973.93 and 8,910.02

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Solution

The fourth proportional to 15,197.06, 20,973.93 and 8,910.02 is: 12,296.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197.06 : 20,973.93 = 8,910.02 : x
  2. Step 2: Convert to fraction form
    15,197.06/20,973.93 = 8,910.02/x
  3. Step 3: Cross multiply
    15,197.06x = 20,973.93 × 8,910.02
  4. Step 4: Simplify right side
    15,197.06x = 186,878,135.78
  5. Step 5: Solve for x
    x = 186,878,135.78/15,197.06
  6. Step 6: Final answer
    x = 12,296.99

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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.