Home / 12,208.10-18,312.15-4,415.09

Finding the Fourth Proportional to 12,208.10, 18,312.15 and 4,415.09

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Solution

The fourth proportional to 12,208.10, 18,312.15 and 4,415.09 is: 6,622.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.10 : 18,312.15 = 4,415.09 : x
  2. Step 2: Convert to fraction form
    12,208.10/18,312.15 = 4,415.09/x
  3. Step 3: Cross multiply
    12,208.10x = 18,312.15 × 4,415.09
  4. Step 4: Simplify right side
    12,208.10x = 80,849,790.34
  5. Step 5: Solve for x
    x = 80,849,790.34/12,208.10
  6. Step 6: Final answer
    x = 6,622.64

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Double scale
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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.