Home / 7,852.20-11,776.70-3,407.18

Finding the Fourth Proportional to 7,852.20, 11,776.70 and 3,407.18

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Solution

The fourth proportional to 7,852.20, 11,776.70 and 3,407.18 is: 5,110.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,852.20 : 11,776.70 = 3,407.18 : x
  2. Step 2: Convert to fraction form
    7,852.20/11,776.70 = 3,407.18/x
  3. Step 3: Cross multiply
    7,852.20x = 11,776.70 × 3,407.18
  4. Step 4: Simplify right side
    7,852.20x = 40,125,336.71
  5. Step 5: Solve for x
    x = 40,125,336.71/7,852.20
  6. Step 6: Final answer
    x = 5,110.08

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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.