Home / 10,382.58-15,571.71-2,987.55

Finding the Fourth Proportional to 10,382.58, 15,571.71 and 2,987.55

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Solution

The fourth proportional to 10,382.58, 15,571.71 and 2,987.55 is: 4,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,382.58 : 15,571.71 = 2,987.55 : x
  2. Step 2: Convert to fraction form
    10,382.58/15,571.71 = 2,987.55/x
  3. Step 3: Cross multiply
    10,382.58x = 15,571.71 × 2,987.55
  4. Step 4: Simplify right side
    10,382.58x = 46,521,262.21
  5. Step 5: Solve for x
    x = 46,521,262.21/10,382.58
  6. Step 6: Final answer
    x = 4,480.70

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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.