Home / 13,107.60-19,669.50-5,316.48

Finding the Fourth Proportional to 13,107.60, 19,669.50 and 5,316.48

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Solution

The fourth proportional to 13,107.60, 19,669.50 and 5,316.48 is: 7,978.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.60 : 19,669.50 = 5,316.48 : x
  2. Step 2: Convert to fraction form
    13,107.60/19,669.50 = 5,316.48/x
  3. Step 3: Cross multiply
    13,107.60x = 19,669.50 × 5,316.48
  4. Step 4: Simplify right side
    13,107.60x = 104,572,503.36
  5. Step 5: Solve for x
    x = 104,572,503.36/13,107.60
  6. Step 6: Final answer
    x = 7,978.01

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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.