Home / 13,643.36-18,829.50-7,675.28

Finding the Fourth Proportional to 13,643.36, 18,829.50 and 7,675.28

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Solution

The fourth proportional to 13,643.36, 18,829.50 and 7,675.28 is: 10,592.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.36 : 18,829.50 = 7,675.28 : x
  2. Step 2: Convert to fraction form
    13,643.36/18,829.50 = 7,675.28/x
  3. Step 3: Cross multiply
    13,643.36x = 18,829.50 × 7,675.28
  4. Step 4: Simplify right side
    13,643.36x = 144,521,684.76
  5. Step 5: Solve for x
    x = 144,521,684.76/13,643.36
  6. Step 6: Final answer
    x = 10,592.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.