Home / 15,636.32-21,578.12-8,562.76

Finding the Fourth Proportional to 15,636.32, 21,578.12 and 8,562.76

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Solution

The fourth proportional to 15,636.32, 21,578.12 and 8,562.76 is: 11,816.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,636.32 : 21,578.12 = 8,562.76 : x
  2. Step 2: Convert to fraction form
    15,636.32/21,578.12 = 8,562.76/x
  3. Step 3: Cross multiply
    15,636.32x = 21,578.12 × 8,562.76
  4. Step 4: Simplify right side
    15,636.32x = 184,768,262.81
  5. Step 5: Solve for x
    x = 184,768,262.81/15,636.32
  6. Step 6: Final answer
    x = 11,816.61

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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.