Home / 13,818.64-19,069.75-7,531.02

Finding the Fourth Proportional to 13,818.64, 19,069.75 and 7,531.02

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Solution

The fourth proportional to 13,818.64, 19,069.75 and 7,531.02 is: 10,392.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.64 : 19,069.75 = 7,531.02 : x
  2. Step 2: Convert to fraction form
    13,818.64/19,069.75 = 7,531.02/x
  3. Step 3: Cross multiply
    13,818.64x = 19,069.75 × 7,531.02
  4. Step 4: Simplify right side
    13,818.64x = 143,614,668.65
  5. Step 5: Solve for x
    x = 143,614,668.65/13,818.64
  6. Step 6: Final answer
    x = 10,392.82

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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.