Home / 12,215.02-18,324.85-4,207.66

Finding the Fourth Proportional to 12,215.02, 18,324.85 and 4,207.66

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Solution

The fourth proportional to 12,215.02, 18,324.85 and 4,207.66 is: 6,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.02 : 18,324.85 = 4,207.66 : x
  2. Step 2: Convert to fraction form
    12,215.02/18,324.85 = 4,207.66/x
  3. Step 3: Cross multiply
    12,215.02x = 18,324.85 × 4,207.66
  4. Step 4: Simplify right side
    12,215.02x = 77,104,792.99
  5. Step 5: Solve for x
    x = 77,104,792.99/12,215.02
  6. Step 6: Final answer
    x = 6,312.29

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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.