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Finding the Fourth Proportional to 15,860.95, 23,789.75 and 8,361.51

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Solution

The fourth proportional to 15,860.95, 23,789.75 and 8,361.51 is: 12,541.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,860.95 : 23,789.75 = 8,361.51 : x
  2. Step 2: Convert to fraction form
    15,860.95/23,789.75 = 8,361.51/x
  3. Step 3: Cross multiply
    15,860.95x = 23,789.75 × 8,361.51
  4. Step 4: Simplify right side
    15,860.95x = 198,918,101.50
  5. Step 5: Solve for x
    x = 198,918,101.50/15,860.95
  6. Step 6: Final answer
    x = 12,541.38

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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.