Home / 10,284.44-15,420.18-8,724.99

Finding the Fourth Proportional to 10,284.44, 15,420.18 and 8,724.99

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Solution

The fourth proportional to 10,284.44, 15,420.18 and 8,724.99 is: 13,081.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.44 : 15,420.18 = 8,724.99 : x
  2. Step 2: Convert to fraction form
    10,284.44/15,420.18 = 8,724.99/x
  3. Step 3: Cross multiply
    10,284.44x = 15,420.18 × 8,724.99
  4. Step 4: Simplify right side
    10,284.44x = 134,540,916.30
  5. Step 5: Solve for x
    x = 134,540,916.30/10,284.44
  6. Step 6: Final answer
    x = 13,081.99

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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.