Home / 6,712.80-10,068.36-1,782.72

Finding the Fourth Proportional to 6,712.80, 10,068.36 and 1,782.72

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Solution

The fourth proportional to 6,712.80, 10,068.36 and 1,782.72 is: 2,673.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,712.80 : 10,068.36 = 1,782.72 : x
  2. Step 2: Convert to fraction form
    6,712.80/10,068.36 = 1,782.72/x
  3. Step 3: Cross multiply
    6,712.80x = 10,068.36 × 1,782.72
  4. Step 4: Simplify right side
    6,712.80x = 17,949,066.74
  5. Step 5: Solve for x
    x = 17,949,066.74/6,712.80
  6. Step 6: Final answer
    x = 2,673.86

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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.