Home / 7,480.14-10,322.40-4,455.42

Finding the Fourth Proportional to 7,480.14, 10,322.40 and 4,455.42

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Solution

The fourth proportional to 7,480.14, 10,322.40 and 4,455.42 is: 6,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.14 : 10,322.40 = 4,455.42 : x
  2. Step 2: Convert to fraction form
    7,480.14/10,322.40 = 4,455.42/x
  3. Step 3: Cross multiply
    7,480.14x = 10,322.40 × 4,455.42
  4. Step 4: Simplify right side
    7,480.14x = 45,990,627.41
  5. Step 5: Solve for x
    x = 45,990,627.41/7,480.14
  6. Step 6: Final answer
    x = 6,148.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.