Home / 14,492.36-21,760.61-13,778.76

Finding the Fourth Proportional to 14,492.36, 21,760.61 and 13,778.76

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Solution

The fourth proportional to 14,492.36, 21,760.61 and 13,778.76 is: 20,689.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,492.36 : 21,760.61 = 13,778.76 : x
  2. Step 2: Convert to fraction form
    14,492.36/21,760.61 = 13,778.76/x
  3. Step 3: Cross multiply
    14,492.36x = 21,760.61 × 13,778.76
  4. Step 4: Simplify right side
    14,492.36x = 299,834,257.09
  5. Step 5: Solve for x
    x = 299,834,257.09/14,492.36
  6. Step 6: Final answer
    x = 20,689.12

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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.