Home / 15,987.86-23,983.39-4,894.42

Finding the Fourth Proportional to 15,987.86, 23,983.39 and 4,894.42

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Solution

The fourth proportional to 15,987.86, 23,983.39 and 4,894.42 is: 7,342.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.86 : 23,983.39 = 4,894.42 : x
  2. Step 2: Convert to fraction form
    15,987.86/23,983.39 = 4,894.42/x
  3. Step 3: Cross multiply
    15,987.86x = 23,983.39 × 4,894.42
  4. Step 4: Simplify right side
    15,987.86x = 117,384,783.68
  5. Step 5: Solve for x
    x = 117,384,783.68/15,987.86
  6. Step 6: Final answer
    x = 7,342.12

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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.