Home / 18,967.15-28,412.62-9,450.76

Finding the Fourth Proportional to 18,967.15, 28,412.62 and 9,450.76

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Solution

The fourth proportional to 18,967.15, 28,412.62 and 9,450.76 is: 14,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.15 : 28,412.62 = 9,450.76 : x
  2. Step 2: Convert to fraction form
    18,967.15/28,412.62 = 9,450.76/x
  3. Step 3: Cross multiply
    18,967.15x = 28,412.62 × 9,450.76
  4. Step 4: Simplify right side
    18,967.15x = 268,520,852.59
  5. Step 5: Solve for x
    x = 268,520,852.59/18,967.15
  6. Step 6: Final answer
    x = 14,157.15

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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.