Home / 15,642.43-21,586.87-8,568.85

Finding the Fourth Proportional to 15,642.43, 21,586.87 and 8,568.85

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Solution

The fourth proportional to 15,642.43, 21,586.87 and 8,568.85 is: 11,825.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642.43 : 21,586.87 = 8,568.85 : x
  2. Step 2: Convert to fraction form
    15,642.43/21,586.87 = 8,568.85/x
  3. Step 3: Cross multiply
    15,642.43x = 21,586.87 × 8,568.85
  4. Step 4: Simplify right side
    15,642.43x = 184,974,600.02
  5. Step 5: Solve for x
    x = 184,974,600.02/15,642.43
  6. Step 6: Final answer
    x = 11,825.19

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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.