Home / 12,612.48-17,393.61-8,303.75

Finding the Fourth Proportional to 12,612.48, 17,393.61 and 8,303.75

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Solution

The fourth proportional to 12,612.48, 17,393.61 and 8,303.75 is: 11,451.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.48 : 17,393.61 = 8,303.75 : x
  2. Step 2: Convert to fraction form
    12,612.48/17,393.61 = 8,303.75/x
  3. Step 3: Cross multiply
    12,612.48x = 17,393.61 × 8,303.75
  4. Step 4: Simplify right side
    12,612.48x = 144,432,198.43
  5. Step 5: Solve for x
    x = 144,432,198.43/12,612.48
  6. Step 6: Final answer
    x = 11,451.53

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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.