Home / 13,312.53-19,981.09-6,743.32

Finding the Fourth Proportional to 13,312.53, 19,981.09 and 6,743.32

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Solution

The fourth proportional to 13,312.53, 19,981.09 and 6,743.32 is: 10,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.53 : 19,981.09 = 6,743.32 : x
  2. Step 2: Convert to fraction form
    13,312.53/19,981.09 = 6,743.32/x
  3. Step 3: Cross multiply
    13,312.53x = 19,981.09 × 6,743.32
  4. Step 4: Simplify right side
    13,312.53x = 134,738,883.82
  5. Step 5: Solve for x
    x = 134,738,883.82/13,312.53
  6. Step 6: Final answer
    x = 10,121.21

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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.