Home / 12,864.81-19,297.20-8,450.35

Finding the Fourth Proportional to 12,864.81, 19,297.20 and 8,450.35

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Solution

The fourth proportional to 12,864.81, 19,297.20 and 8,450.35 is: 12,675.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.81 : 19,297.20 = 8,450.35 : x
  2. Step 2: Convert to fraction form
    12,864.81/19,297.20 = 8,450.35/x
  3. Step 3: Cross multiply
    12,864.81x = 19,297.20 × 8,450.35
  4. Step 4: Simplify right side
    12,864.81x = 163,068,094.02
  5. Step 5: Solve for x
    x = 163,068,094.02/12,864.81
  6. Step 6: Final answer
    x = 12,675.52

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Similar ratio
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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.