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Finding the Fourth Proportional to 9,415.80, 14,094.90 and 9,415.80

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Solution

The fourth proportional to 9,415.80, 14,094.90 and 9,415.80 is: 14,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.80 : 14,094.90 = 9,415.80 : x
  2. Step 2: Convert to fraction form
    9,415.80/14,094.90 = 9,415.80/x
  3. Step 3: Cross multiply
    9,415.80x = 14,094.90 × 9,415.80
  4. Step 4: Simplify right side
    9,415.80x = 132,714,759.42
  5. Step 5: Solve for x
    x = 132,714,759.42/9,415.80
  6. Step 6: Final answer
    x = 14,094.90

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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.