Home / 10,645.40-15,970.64-5,367.44

Finding the Fourth Proportional to 10,645.40, 15,970.64 and 5,367.44

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Solution

The fourth proportional to 10,645.40, 15,970.64 and 5,367.44 is: 8,052.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.40 : 15,970.64 = 5,367.44 : x
  2. Step 2: Convert to fraction form
    10,645.40/15,970.64 = 5,367.44/x
  3. Step 3: Cross multiply
    10,645.40x = 15,970.64 × 5,367.44
  4. Step 4: Simplify right side
    10,645.40x = 85,721,465.05
  5. Step 5: Solve for x
    x = 85,721,465.05/10,645.40
  6. Step 6: Final answer
    x = 8,052.44

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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.