Home / 17,860.40-26,790.46-5,380.38

Finding the Fourth Proportional to 17,860.40, 26,790.46 and 5,380.38

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Solution

The fourth proportional to 17,860.40, 26,790.46 and 5,380.38 is: 8,070.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,860.40 : 26,790.46 = 5,380.38 : x
  2. Step 2: Convert to fraction form
    17,860.40/26,790.46 = 5,380.38/x
  3. Step 3: Cross multiply
    17,860.40x = 26,790.46 × 5,380.38
  4. Step 4: Simplify right side
    17,860.40x = 144,142,855.17
  5. Step 5: Solve for x
    x = 144,142,855.17/17,860.40
  6. Step 6: Final answer
    x = 8,070.53

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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.