Home / 12,276.36-18,415.16-3,512.58

Finding the Fourth Proportional to 12,276.36, 18,415.16 and 3,512.58

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Solution

The fourth proportional to 12,276.36, 18,415.16 and 3,512.58 is: 5,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.36 : 18,415.16 = 3,512.58 : x
  2. Step 2: Convert to fraction form
    12,276.36/18,415.16 = 3,512.58/x
  3. Step 3: Cross multiply
    12,276.36x = 18,415.16 × 3,512.58
  4. Step 4: Simplify right side
    12,276.36x = 64,684,722.71
  5. Step 5: Solve for x
    x = 64,684,722.71/12,276.36
  6. Step 6: Final answer
    x = 5,269.05

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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.