Home / 8,918.47-13,376.64-2,345.17

Finding the Fourth Proportional to 8,918.47, 13,376.64 and 2,345.17

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Solution

The fourth proportional to 8,918.47, 13,376.64 and 2,345.17 is: 3,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.47 : 13,376.64 = 2,345.17 : x
  2. Step 2: Convert to fraction form
    8,918.47/13,376.64 = 2,345.17/x
  3. Step 3: Cross multiply
    8,918.47x = 13,376.64 × 2,345.17
  4. Step 4: Simplify right side
    8,918.47x = 31,370,422.34
  5. Step 5: Solve for x
    x = 31,370,422.34/8,918.47
  6. Step 6: Final answer
    x = 3,517.47

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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.