Home / 12,763.20-17,612.18-7,457.44

Finding the Fourth Proportional to 12,763.20, 17,612.18 and 7,457.44

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Solution

The fourth proportional to 12,763.20, 17,612.18 and 7,457.44 is: 10,290.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.20 : 17,612.18 = 7,457.44 : x
  2. Step 2: Convert to fraction form
    12,763.20/17,612.18 = 7,457.44/x
  3. Step 3: Cross multiply
    12,763.20x = 17,612.18 × 7,457.44
  4. Step 4: Simplify right side
    12,763.20x = 131,341,775.62
  5. Step 5: Solve for x
    x = 131,341,775.62/12,763.20
  6. Step 6: Final answer
    x = 10,290.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.