Home / 12,276.36-18,415.15-3,511.35

Finding the Fourth Proportional to 12,276.36, 18,415.15 and 3,511.35

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Solution

The fourth proportional to 12,276.36, 18,415.15 and 3,511.35 is: 5,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.36 : 18,415.15 = 3,511.35 : x
  2. Step 2: Convert to fraction form
    12,276.36/18,415.15 = 3,511.35/x
  3. Step 3: Cross multiply
    12,276.36x = 18,415.15 × 3,511.35
  4. Step 4: Simplify right side
    12,276.36x = 64,662,028.17
  5. Step 5: Solve for x
    x = 64,662,028.17/12,276.36
  6. Step 6: Final answer
    x = 5,267.20

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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.