Home / 13,235.86-19,857.24-4,918.28

Finding the Fourth Proportional to 13,235.86, 19,857.24 and 4,918.28

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Solution

The fourth proportional to 13,235.86, 19,857.24 and 4,918.28 is: 7,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.86 : 19,857.24 = 4,918.28 : x
  2. Step 2: Convert to fraction form
    13,235.86/19,857.24 = 4,918.28/x
  3. Step 3: Cross multiply
    13,235.86x = 19,857.24 × 4,918.28
  4. Step 4: Simplify right side
    13,235.86x = 97,663,342.47
  5. Step 5: Solve for x
    x = 97,663,342.47/13,235.86
  6. Step 6: Final answer
    x = 7,378.69

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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.