Home / 15,642.10-21,586.10-8,568.77

Finding the Fourth Proportional to 15,642.10, 21,586.10 and 8,568.77

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Solution

The fourth proportional to 15,642.10, 21,586.10 and 8,568.77 is: 11,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642.10 : 21,586.10 = 8,568.77 : x
  2. Step 2: Convert to fraction form
    15,642.10/21,586.10 = 8,568.77/x
  3. Step 3: Cross multiply
    15,642.10x = 21,586.10 × 8,568.77
  4. Step 4: Simplify right side
    15,642.10x = 184,966,326.10
  5. Step 5: Solve for x
    x = 184,966,326.10/15,642.10
  6. Step 6: Final answer
    x = 11,824.90

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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.