Home / 10,645.21-15,966.60-2,853.42

Finding the Fourth Proportional to 10,645.21, 15,966.60 and 2,853.42

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Solution

The fourth proportional to 10,645.21, 15,966.60 and 2,853.42 is: 4,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.21 : 15,966.60 = 2,853.42 : x
  2. Step 2: Convert to fraction form
    10,645.21/15,966.60 = 2,853.42/x
  3. Step 3: Cross multiply
    10,645.21x = 15,966.60 × 2,853.42
  4. Step 4: Simplify right side
    10,645.21x = 45,559,335.94
  5. Step 5: Solve for x
    x = 45,559,335.94/10,645.21
  6. Step 6: Final answer
    x = 4,279.80

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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.