Home / 17,918.90-26,878.14-10,900.84

Finding the Fourth Proportional to 17,918.90, 26,878.14 and 10,900.84

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Solution

The fourth proportional to 17,918.90, 26,878.14 and 10,900.84 is: 16,351.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.90 : 26,878.14 = 10,900.84 : x
  2. Step 2: Convert to fraction form
    17,918.90/26,878.14 = 10,900.84/x
  3. Step 3: Cross multiply
    17,918.90x = 26,878.14 × 10,900.84
  4. Step 4: Simplify right side
    17,918.90x = 292,994,303.64
  5. Step 5: Solve for x
    x = 292,994,303.64/17,918.90
  6. Step 6: Final answer
    x = 16,351.13

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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.