Home / 10,524.31-15,783.72-3,126.78

Finding the Fourth Proportional to 10,524.31, 15,783.72 and 3,126.78

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Solution

The fourth proportional to 10,524.31, 15,783.72 and 3,126.78 is: 4,689.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,524.31 : 15,783.72 = 3,126.78 : x
  2. Step 2: Convert to fraction form
    10,524.31/15,783.72 = 3,126.78/x
  3. Step 3: Cross multiply
    10,524.31x = 15,783.72 × 3,126.78
  4. Step 4: Simplify right side
    10,524.31x = 49,352,220.02
  5. Step 5: Solve for x
    x = 49,352,220.02/10,524.31
  6. Step 6: Final answer
    x = 4,689.35

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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.