Home / 15,585.07-21,486.99-11,539.12

Finding the Fourth Proportional to 15,585.07, 21,486.99 and 11,539.12

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Solution

The fourth proportional to 15,585.07, 21,486.99 and 11,539.12 is: 15,908.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585.07 : 21,486.99 = 11,539.12 : x
  2. Step 2: Convert to fraction form
    15,585.07/21,486.99 = 11,539.12/x
  3. Step 3: Cross multiply
    15,585.07x = 21,486.99 × 11,539.12
  4. Step 4: Simplify right side
    15,585.07x = 247,940,956.05
  5. Step 5: Solve for x
    x = 247,940,956.05/15,585.07
  6. Step 6: Final answer
    x = 15,908.88

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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.