Home / 15,918.03-23,868.81-7,145.39

Finding the Fourth Proportional to 15,918.03, 23,868.81 and 7,145.39

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Solution

The fourth proportional to 15,918.03, 23,868.81 and 7,145.39 is: 10,714.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.03 : 23,868.81 = 7,145.39 : x
  2. Step 2: Convert to fraction form
    15,918.03/23,868.81 = 7,145.39/x
  3. Step 3: Cross multiply
    15,918.03x = 23,868.81 × 7,145.39
  4. Step 4: Simplify right side
    15,918.03x = 170,551,920.56
  5. Step 5: Solve for x
    x = 170,551,920.56/15,918.03
  6. Step 6: Final answer
    x = 10,714.39

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1.5x scale

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.