Home / 15,252.69-21,048.60-8,538.30

Finding the Fourth Proportional to 15,252.69, 21,048.60 and 8,538.30

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Solution

The fourth proportional to 15,252.69, 21,048.60 and 8,538.30 is: 11,782.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,252.69 : 21,048.60 = 8,538.30 : x
  2. Step 2: Convert to fraction form
    15,252.69/21,048.60 = 8,538.30/x
  3. Step 3: Cross multiply
    15,252.69x = 21,048.60 × 8,538.30
  4. Step 4: Simplify right side
    15,252.69x = 179,719,261.38
  5. Step 5: Solve for x
    x = 179,719,261.38/15,252.69
  6. Step 6: Final answer
    x = 11,782.79

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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.