Home / 14,213.40-21,300.90-12,562.20

Finding the Fourth Proportional to 14,213.40, 21,300.90 and 12,562.20

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Solution

The fourth proportional to 14,213.40, 21,300.90 and 12,562.20 is: 18,826.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.40 : 21,300.90 = 12,562.20 : x
  2. Step 2: Convert to fraction form
    14,213.40/21,300.90 = 12,562.20/x
  3. Step 3: Cross multiply
    14,213.40x = 21,300.90 × 12,562.20
  4. Step 4: Simplify right side
    14,213.40x = 267,586,165.98
  5. Step 5: Solve for x
    x = 267,586,165.98/14,213.40
  6. Step 6: Final answer
    x = 18,826.33

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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.