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Finding the Fourth Proportional to 8,011.48, 12,007.80 and 7,088.90

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Solution

The fourth proportional to 8,011.48, 12,007.80 and 7,088.90 is: 10,625.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,011.48 : 12,007.80 = 7,088.90 : x
  2. Step 2: Convert to fraction form
    8,011.48/12,007.80 = 7,088.90/x
  3. Step 3: Cross multiply
    8,011.48x = 12,007.80 × 7,088.90
  4. Step 4: Simplify right side
    8,011.48x = 85,122,093.42
  5. Step 5: Solve for x
    x = 85,122,093.42/8,011.48
  6. Step 6: Final answer
    x = 10,625.01

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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.