Home / 13,113.63-19,672.49-5,322.99

Finding the Fourth Proportional to 13,113.63, 19,672.49 and 5,322.99

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Solution

The fourth proportional to 13,113.63, 19,672.49 and 5,322.99 is: 7,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,113.63 : 19,672.49 = 5,322.99 : x
  2. Step 2: Convert to fraction form
    13,113.63/19,672.49 = 5,322.99/x
  3. Step 3: Cross multiply
    13,113.63x = 19,672.49 × 5,322.99
  4. Step 4: Simplify right side
    13,113.63x = 104,716,440.93
  5. Step 5: Solve for x
    x = 104,716,440.93/13,113.63
  6. Step 6: Final answer
    x = 7,985.31

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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.