Home / 13,315.36-19,957.08-5,911.48

Finding the Fourth Proportional to 13,315.36, 19,957.08 and 5,911.48

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Solution

The fourth proportional to 13,315.36, 19,957.08 and 5,911.48 is: 8,860.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.36 : 19,957.08 = 5,911.48 : x
  2. Step 2: Convert to fraction form
    13,315.36/19,957.08 = 5,911.48/x
  3. Step 3: Cross multiply
    13,315.36x = 19,957.08 × 5,911.48
  4. Step 4: Simplify right side
    13,315.36x = 117,975,879.28
  5. Step 5: Solve for x
    x = 117,975,879.28/13,315.36
  6. Step 6: Final answer
    x = 8,860.13

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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.