Home / 19,314.16-28,961.44-9,438.64

Finding the Fourth Proportional to 19,314.16, 28,961.44 and 9,438.64

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Solution

The fourth proportional to 19,314.16, 28,961.44 and 9,438.64 is: 14,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,314.16 : 28,961.44 = 9,438.64 : x
  2. Step 2: Convert to fraction form
    19,314.16/28,961.44 = 9,438.64/x
  3. Step 3: Cross multiply
    19,314.16x = 28,961.44 × 9,438.64
  4. Step 4: Simplify right side
    19,314.16x = 273,356,606.04
  5. Step 5: Solve for x
    x = 273,356,606.04/19,314.16
  6. Step 6: Final answer
    x = 14,153.17

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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.