Home / 15,836.78-23,730.16-12,860.74

Finding the Fourth Proportional to 15,836.78, 23,730.16 and 12,860.74

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Solution

The fourth proportional to 15,836.78, 23,730.16 and 12,860.74 is: 19,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,836.78 : 23,730.16 = 12,860.74 : x
  2. Step 2: Convert to fraction form
    15,836.78/23,730.16 = 12,860.74/x
  3. Step 3: Cross multiply
    15,836.78x = 23,730.16 × 12,860.74
  4. Step 4: Simplify right side
    15,836.78x = 305,187,290.88
  5. Step 5: Solve for x
    x = 305,187,290.88/15,836.78
  6. Step 6: Final answer
    x = 19,270.80

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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.