Home / 10,918.65-16,376.39-5,370.51

Finding the Fourth Proportional to 10,918.65, 16,376.39 and 5,370.51

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Solution

The fourth proportional to 10,918.65, 16,376.39 and 5,370.51 is: 8,054.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.65 : 16,376.39 = 5,370.51 : x
  2. Step 2: Convert to fraction form
    10,918.65/16,376.39 = 5,370.51/x
  3. Step 3: Cross multiply
    10,918.65x = 16,376.39 × 5,370.51
  4. Step 4: Simplify right side
    10,918.65x = 87,949,566.26
  5. Step 5: Solve for x
    x = 87,949,566.26/10,918.65
  6. Step 6: Final answer
    x = 8,054.99

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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.