Home / 15,525.80-21,425.86-8,452.36

Finding the Fourth Proportional to 15,525.80, 21,425.86 and 8,452.36

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Solution

The fourth proportional to 15,525.80, 21,425.86 and 8,452.36 is: 11,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,525.80 : 21,425.86 = 8,452.36 : x
  2. Step 2: Convert to fraction form
    15,525.80/21,425.86 = 8,452.36/x
  3. Step 3: Cross multiply
    15,525.80x = 21,425.86 × 8,452.36
  4. Step 4: Simplify right side
    15,525.80x = 181,099,082.03
  5. Step 5: Solve for x
    x = 181,099,082.03/15,525.80
  6. Step 6: Final answer
    x = 11,664.40

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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.