Home / 14,158.68-21,118.54-12,295.14

Finding the Fourth Proportional to 14,158.68, 21,118.54 and 12,295.14

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Solution

The fourth proportional to 14,158.68, 21,118.54 and 12,295.14 is: 18,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.68 : 21,118.54 = 12,295.14 : x
  2. Step 2: Convert to fraction form
    14,158.68/21,118.54 = 12,295.14/x
  3. Step 3: Cross multiply
    14,158.68x = 21,118.54 × 12,295.14
  4. Step 4: Simplify right side
    14,158.68x = 259,655,405.90
  5. Step 5: Solve for x
    x = 259,655,405.90/14,158.68
  6. Step 6: Final answer
    x = 18,338.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.