Home / 14,063.55-21,114.12-12,186.15

Finding the Fourth Proportional to 14,063.55, 21,114.12 and 12,186.15

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Solution

The fourth proportional to 14,063.55, 21,114.12 and 12,186.15 is: 18,295.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,063.55 : 21,114.12 = 12,186.15 : x
  2. Step 2: Convert to fraction form
    14,063.55/21,114.12 = 12,186.15/x
  3. Step 3: Cross multiply
    14,063.55x = 21,114.12 × 12,186.15
  4. Step 4: Simplify right side
    14,063.55x = 257,299,731.41
  5. Step 5: Solve for x
    x = 257,299,731.41/14,063.55
  6. Step 6: Final answer
    x = 18,295.50

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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.