Home / 15,781.21-23,653.83-9,860.83

Finding the Fourth Proportional to 15,781.21, 23,653.83 and 9,860.83

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Solution

The fourth proportional to 15,781.21, 23,653.83 and 9,860.83 is: 14,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.21 : 23,653.83 = 9,860.83 : x
  2. Step 2: Convert to fraction form
    15,781.21/23,653.83 = 9,860.83/x
  3. Step 3: Cross multiply
    15,781.21x = 23,653.83 × 9,860.83
  4. Step 4: Simplify right side
    15,781.21x = 233,246,396.48
  5. Step 5: Solve for x
    x = 233,246,396.48/15,781.21
  6. Step 6: Final answer
    x = 14,780.01

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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.