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Finding the Fourth Proportional to 10,611.04, 15,887.40 and 8,006.08

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Solution

The fourth proportional to 10,611.04, 15,887.40 and 8,006.08 is: 11,987.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.04 : 15,887.40 = 8,006.08 : x
  2. Step 2: Convert to fraction form
    10,611.04/15,887.40 = 8,006.08/x
  3. Step 3: Cross multiply
    10,611.04x = 15,887.40 × 8,006.08
  4. Step 4: Simplify right side
    10,611.04x = 127,195,795.39
  5. Step 5: Solve for x
    x = 127,195,795.39/10,611.04
  6. Step 6: Final answer
    x = 11,987.12

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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.