Home / 14,662.32-21,990.10-8,740.88

Finding the Fourth Proportional to 14,662.32, 21,990.10 and 8,740.88

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Solution

The fourth proportional to 14,662.32, 21,990.10 and 8,740.88 is: 13,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,662.32 : 21,990.10 = 8,740.88 : x
  2. Step 2: Convert to fraction form
    14,662.32/21,990.10 = 8,740.88/x
  3. Step 3: Cross multiply
    14,662.32x = 21,990.10 × 8,740.88
  4. Step 4: Simplify right side
    14,662.32x = 192,212,715.34
  5. Step 5: Solve for x
    x = 192,212,715.34/14,662.32
  6. Step 6: Final answer
    x = 13,109.30

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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.