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Finding the Fourth Proportional to 11,095.88, 16,626.08 and 7,770.40

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Solution

The fourth proportional to 11,095.88, 16,626.08 and 7,770.40 is: 11,643.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,095.88 : 16,626.08 = 7,770.40 : x
  2. Step 2: Convert to fraction form
    11,095.88/16,626.08 = 7,770.40/x
  3. Step 3: Cross multiply
    11,095.88x = 16,626.08 × 7,770.40
  4. Step 4: Simplify right side
    11,095.88x = 129,191,292.03
  5. Step 5: Solve for x
    x = 129,191,292.03/11,095.88
  6. Step 6: Final answer
    x = 11,643.18

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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.