Home / 10,772.37-16,142.99-7,437.20

Finding the Fourth Proportional to 10,772.37, 16,142.99 and 7,437.20

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Solution

The fourth proportional to 10,772.37, 16,142.99 and 7,437.20 is: 11,145.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,772.37 : 16,142.99 = 7,437.20 : x
  2. Step 2: Convert to fraction form
    10,772.37/16,142.99 = 7,437.20/x
  3. Step 3: Cross multiply
    10,772.37x = 16,142.99 × 7,437.20
  4. Step 4: Simplify right side
    10,772.37x = 120,058,527.33
  5. Step 5: Solve for x
    x = 120,058,527.33/10,772.37
  6. Step 6: Final answer
    x = 11,145.04

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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.