Home / 8,705.40-13,057.56-2,782.14

Finding the Fourth Proportional to 8,705.40, 13,057.56 and 2,782.14

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Solution

The fourth proportional to 8,705.40, 13,057.56 and 2,782.14 is: 4,173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.40 : 13,057.56 = 2,782.14 : x
  2. Step 2: Convert to fraction form
    8,705.40/13,057.56 = 2,782.14/x
  3. Step 3: Cross multiply
    8,705.40x = 13,057.56 × 2,782.14
  4. Step 4: Simplify right side
    8,705.40x = 36,327,959.98
  5. Step 5: Solve for x
    x = 36,327,959.98/8,705.40
  6. Step 6: Final answer
    x = 4,173.04

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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.