Home / 10,371.81-15,534.63-5,166.75

Finding the Fourth Proportional to 10,371.81, 15,534.63 and 5,166.75

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Solution

The fourth proportional to 10,371.81, 15,534.63 and 5,166.75 is: 7,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.81 : 15,534.63 = 5,166.75 : x
  2. Step 2: Convert to fraction form
    10,371.81/15,534.63 = 5,166.75/x
  3. Step 3: Cross multiply
    10,371.81x = 15,534.63 × 5,166.75
  4. Step 4: Simplify right side
    10,371.81x = 80,263,549.55
  5. Step 5: Solve for x
    x = 80,263,549.55/10,371.81
  6. Step 6: Final answer
    x = 7,738.63

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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.