Home / 10,380.32-15,570.44-6,221.58

Finding the Fourth Proportional to 10,380.32, 15,570.44 and 6,221.58

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Solution

The fourth proportional to 10,380.32, 15,570.44 and 6,221.58 is: 9,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.32 : 15,570.44 = 6,221.58 : x
  2. Step 2: Convert to fraction form
    10,380.32/15,570.44 = 6,221.58/x
  3. Step 3: Cross multiply
    10,380.32x = 15,570.44 × 6,221.58
  4. Step 4: Simplify right side
    10,380.32x = 96,872,738.10
  5. Step 5: Solve for x
    x = 96,872,738.10/10,380.32
  6. Step 6: Final answer
    x = 9,332.35

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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.