Home / 7,515.65-10,371.39-4,158.60

Finding the Fourth Proportional to 7,515.65, 10,371.39 and 4,158.60

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Solution

The fourth proportional to 7,515.65, 10,371.39 and 4,158.60 is: 5,738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.65 : 10,371.39 = 4,158.60 : x
  2. Step 2: Convert to fraction form
    7,515.65/10,371.39 = 4,158.60/x
  3. Step 3: Cross multiply
    7,515.65x = 10,371.39 × 4,158.60
  4. Step 4: Simplify right side
    7,515.65x = 43,130,504.28
  5. Step 5: Solve for x
    x = 43,130,504.28/7,515.65
  6. Step 6: Final answer
    x = 5,738.76

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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.