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Finding the Fourth Proportional to 7,515.59, 10,371.47 and 4,203.59

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Solution

The fourth proportional to 7,515.59, 10,371.47 and 4,203.59 is: 5,800.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.59 : 10,371.47 = 4,203.59 : x
  2. Step 2: Convert to fraction form
    7,515.59/10,371.47 = 4,203.59/x
  3. Step 3: Cross multiply
    7,515.59x = 10,371.47 × 4,203.59
  4. Step 4: Simplify right side
    7,515.59x = 43,597,334.70
  5. Step 5: Solve for x
    x = 43,597,334.70/7,515.59
  6. Step 6: Final answer
    x = 5,800.92

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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.