Home / 10,522.43-15,783.31-3,126.86

Finding the Fourth Proportional to 10,522.43, 15,783.31 and 3,126.86

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Solution

The fourth proportional to 10,522.43, 15,783.31 and 3,126.86 is: 4,690.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.43 : 15,783.31 = 3,126.86 : x
  2. Step 2: Convert to fraction form
    10,522.43/15,783.31 = 3,126.86/x
  3. Step 3: Cross multiply
    10,522.43x = 15,783.31 × 3,126.86
  4. Step 4: Simplify right side
    10,522.43x = 49,352,200.71
  5. Step 5: Solve for x
    x = 49,352,200.71/10,522.43
  6. Step 6: Final answer
    x = 4,690.19

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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.