Home / 13,319.16-19,988.73-5,007.36

Finding the Fourth Proportional to 13,319.16, 19,988.73 and 5,007.36

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Solution

The fourth proportional to 13,319.16, 19,988.73 and 5,007.36 is: 7,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.16 : 19,988.73 = 5,007.36 : x
  2. Step 2: Convert to fraction form
    13,319.16/19,988.73 = 5,007.36/x
  3. Step 3: Cross multiply
    13,319.16x = 19,988.73 × 5,007.36
  4. Step 4: Simplify right side
    13,319.16x = 100,090,767.05
  5. Step 5: Solve for x
    x = 100,090,767.05/13,319.16
  6. Step 6: Final answer
    x = 7,514.80

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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.