Home / 15,362.22-21,199.68-8,647.86

Finding the Fourth Proportional to 15,362.22, 21,199.68 and 8,647.86

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Solution

The fourth proportional to 15,362.22, 21,199.68 and 8,647.86 is: 11,933.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.22 : 21,199.68 = 8,647.86 : x
  2. Step 2: Convert to fraction form
    15,362.22/21,199.68 = 8,647.86/x
  3. Step 3: Cross multiply
    15,362.22x = 21,199.68 × 8,647.86
  4. Step 4: Simplify right side
    15,362.22x = 183,331,864.68
  5. Step 5: Solve for x
    x = 183,331,864.68/15,362.22
  6. Step 6: Final answer
    x = 11,933.94

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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.