Home / 13,300.24-19,914.64-7,440.16

Finding the Fourth Proportional to 13,300.24, 19,914.64 and 7,440.16

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Solution

The fourth proportional to 13,300.24, 19,914.64 and 7,440.16 is: 11,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.24 : 19,914.64 = 7,440.16 : x
  2. Step 2: Convert to fraction form
    13,300.24/19,914.64 = 7,440.16/x
  3. Step 3: Cross multiply
    13,300.24x = 19,914.64 × 7,440.16
  4. Step 4: Simplify right side
    13,300.24x = 148,168,107.94
  5. Step 5: Solve for x
    x = 148,168,107.94/13,300.24
  6. Step 6: Final answer
    x = 11,140.26

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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.