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Finding the Fourth Proportional to 10,611.03, 15,894.67 and 6,215.16

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Solution

The fourth proportional to 10,611.03, 15,894.67 and 6,215.16 is: 9,309.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.03 : 15,894.67 = 6,215.16 : x
  2. Step 2: Convert to fraction form
    10,611.03/15,894.67 = 6,215.16/x
  3. Step 3: Cross multiply
    10,611.03x = 15,894.67 × 6,215.16
  4. Step 4: Simplify right side
    10,611.03x = 98,787,917.20
  5. Step 5: Solve for x
    x = 98,787,917.20/10,611.03
  6. Step 6: Final answer
    x = 9,309.93

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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.