Home / 10,918.19-16,381.54-4,345.04

Finding the Fourth Proportional to 10,918.19, 16,381.54 and 4,345.04

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Solution

The fourth proportional to 10,918.19, 16,381.54 and 4,345.04 is: 6,519.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.19 : 16,381.54 = 4,345.04 : x
  2. Step 2: Convert to fraction form
    10,918.19/16,381.54 = 4,345.04/x
  3. Step 3: Cross multiply
    10,918.19x = 16,381.54 × 4,345.04
  4. Step 4: Simplify right side
    10,918.19x = 71,178,492.95
  5. Step 5: Solve for x
    x = 71,178,492.95/10,918.19
  6. Step 6: Final answer
    x = 6,519.26

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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.