Home / 12,726.72-19,088.64-3,492

Finding the Fourth Proportional to 12,726.72, 19,088.64 and 3,492

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Solution

The fourth proportional to 12,726.72, 19,088.64 and 3,492 is: 5,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.72 : 19,088.64 = 3,492 : x
  2. Step 2: Convert to fraction form
    12,726.72/19,088.64 = 3,492/x
  3. Step 3: Cross multiply
    12,726.72x = 19,088.64 × 3,492
  4. Step 4: Simplify right side
    12,726.72x = 66,657,530.88
  5. Step 5: Solve for x
    x = 66,657,530.88/12,726.72
  6. Step 6: Final answer
    x = 5,237.60

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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.