Home / 15,525.62-21,424.74-8,452.05

Finding the Fourth Proportional to 15,525.62, 21,424.74 and 8,452.05

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Solution

The fourth proportional to 15,525.62, 21,424.74 and 8,452.05 is: 11,663.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.62 : 21,424.74 = 8,452.05 : x
  2. Step 2: Convert to fraction form
    15,525.62/21,424.74 = 8,452.05/x
  3. Step 3: Cross multiply
    15,525.62x = 21,424.74 × 8,452.05
  4. Step 4: Simplify right side
    15,525.62x = 181,082,861.68
  5. Step 5: Solve for x
    x = 181,082,861.68/15,525.62
  6. Step 6: Final answer
    x = 11,663.49

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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.