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Finding the Fourth Proportional to 10,062.79, 15,109.98 and 8,522.98

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Solution

The fourth proportional to 10,062.79, 15,109.98 and 8,522.98 is: 12,797.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,062.79 : 15,109.98 = 8,522.98 : x
  2. Step 2: Convert to fraction form
    10,062.79/15,109.98 = 8,522.98/x
  3. Step 3: Cross multiply
    10,062.79x = 15,109.98 × 8,522.98
  4. Step 4: Simplify right side
    10,062.79x = 128,781,987.60
  5. Step 5: Solve for x
    x = 128,781,987.60/10,062.79
  6. Step 6: Final answer
    x = 12,797.84

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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.