Home / 7,456.12-11,184.16-1,909.46

Finding the Fourth Proportional to 7,456.12, 11,184.16 and 1,909.46

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Solution

The fourth proportional to 7,456.12, 11,184.16 and 1,909.46 is: 2,864.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.12 : 11,184.16 = 1,909.46 : x
  2. Step 2: Convert to fraction form
    7,456.12/11,184.16 = 1,909.46/x
  3. Step 3: Cross multiply
    7,456.12x = 11,184.16 × 1,909.46
  4. Step 4: Simplify right side
    7,456.12x = 21,355,706.15
  5. Step 5: Solve for x
    x = 21,355,706.15/7,456.12
  6. Step 6: Final answer
    x = 2,864.18

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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.