Home / 13,116.24-19,678.02-5,721.36

Finding the Fourth Proportional to 13,116.24, 19,678.02 and 5,721.36

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Solution

The fourth proportional to 13,116.24, 19,678.02 and 5,721.36 is: 8,583.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116.24 : 19,678.02 = 5,721.36 : x
  2. Step 2: Convert to fraction form
    13,116.24/19,678.02 = 5,721.36/x
  3. Step 3: Cross multiply
    13,116.24x = 19,678.02 × 5,721.36
  4. Step 4: Simplify right side
    13,116.24x = 112,585,036.51
  5. Step 5: Solve for x
    x = 112,585,036.51/13,116.24
  6. Step 6: Final answer
    x = 8,583.64

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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.