Home / 15,389.78-23,081.35-4,860.62

Finding the Fourth Proportional to 15,389.78, 23,081.35 and 4,860.62

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Solution

The fourth proportional to 15,389.78, 23,081.35 and 4,860.62 is: 7,289.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,389.78 : 23,081.35 = 4,860.62 : x
  2. Step 2: Convert to fraction form
    15,389.78/23,081.35 = 4,860.62/x
  3. Step 3: Cross multiply
    15,389.78x = 23,081.35 × 4,860.62
  4. Step 4: Simplify right side
    15,389.78x = 112,189,671.44
  5. Step 5: Solve for x
    x = 112,189,671.44/15,389.78
  6. Step 6: Final answer
    x = 7,289.88

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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.