Home / 15,642.07-21,586.58-8,568.88

Finding the Fourth Proportional to 15,642.07, 21,586.58 and 8,568.88

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Solution

The fourth proportional to 15,642.07, 21,586.58 and 8,568.88 is: 11,825.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642.07 : 21,586.58 = 8,568.88 : x
  2. Step 2: Convert to fraction form
    15,642.07/21,586.58 = 8,568.88/x
  3. Step 3: Cross multiply
    15,642.07x = 21,586.58 × 8,568.88
  4. Step 4: Simplify right side
    15,642.07x = 184,972,813.63
  5. Step 5: Solve for x
    x = 184,972,813.63/15,642.07
  6. Step 6: Final answer
    x = 11,825.34

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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.