Home / 14,669.40-21,987.90-8,100.30

Finding the Fourth Proportional to 14,669.40, 21,987.90 and 8,100.30

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Solution

The fourth proportional to 14,669.40, 21,987.90 and 8,100.30 is: 12,141.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,669.40 : 21,987.90 = 8,100.30 : x
  2. Step 2: Convert to fraction form
    14,669.40/21,987.90 = 8,100.30/x
  3. Step 3: Cross multiply
    14,669.40x = 21,987.90 × 8,100.30
  4. Step 4: Simplify right side
    14,669.40x = 178,108,586.37
  5. Step 5: Solve for x
    x = 178,108,586.37/14,669.40
  6. Step 6: Final answer
    x = 12,141.50

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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.