Home / 14,215.38-21,297.54-8,368.80

Finding the Fourth Proportional to 14,215.38, 21,297.54 and 8,368.80

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Solution

The fourth proportional to 14,215.38, 21,297.54 and 8,368.80 is: 12,538.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.38 : 21,297.54 = 8,368.80 : x
  2. Step 2: Convert to fraction form
    14,215.38/21,297.54 = 8,368.80/x
  3. Step 3: Cross multiply
    14,215.38x = 21,297.54 × 8,368.80
  4. Step 4: Simplify right side
    14,215.38x = 178,234,852.75
  5. Step 5: Solve for x
    x = 178,234,852.75/14,215.38
  6. Step 6: Final answer
    x = 12,538.17

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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.