Home / 15,272.69-21,086.58-9,538.88

Finding the Fourth Proportional to 15,272.69, 21,086.58 and 9,538.88

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Solution

The fourth proportional to 15,272.69, 21,086.58 and 9,538.88 is: 13,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272.69 : 21,086.58 = 9,538.88 : x
  2. Step 2: Convert to fraction form
    15,272.69/21,086.58 = 9,538.88/x
  3. Step 3: Cross multiply
    15,272.69x = 21,086.58 × 9,538.88
  4. Step 4: Simplify right side
    15,272.69x = 201,142,356.23
  5. Step 5: Solve for x
    x = 201,142,356.23/15,272.69
  6. Step 6: Final answer
    x = 13,170.07

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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.