Home / 12,479.02-18,712.27-4,156.11

Finding the Fourth Proportional to 12,479.02, 18,712.27 and 4,156.11

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Solution

The fourth proportional to 12,479.02, 18,712.27 and 4,156.11 is: 6,232.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.02 : 18,712.27 = 4,156.11 : x
  2. Step 2: Convert to fraction form
    12,479.02/18,712.27 = 4,156.11/x
  3. Step 3: Cross multiply
    12,479.02x = 18,712.27 × 4,156.11
  4. Step 4: Simplify right side
    12,479.02x = 77,770,252.47
  5. Step 5: Solve for x
    x = 77,770,252.47/12,479.02
  6. Step 6: Final answer
    x = 6,232.08

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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.