Home / 15,649.81-21,596.69-8,937.54

Finding the Fourth Proportional to 15,649.81, 21,596.69 and 8,937.54

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Solution

The fourth proportional to 15,649.81, 21,596.69 and 8,937.54 is: 12,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,649.81 : 21,596.69 = 8,937.54 : x
  2. Step 2: Convert to fraction form
    15,649.81/21,596.69 = 8,937.54/x
  3. Step 3: Cross multiply
    15,649.81x = 21,596.69 × 8,937.54
  4. Step 4: Simplify right side
    15,649.81x = 193,021,303.09
  5. Step 5: Solve for x
    x = 193,021,303.09/15,649.81
  6. Step 6: Final answer
    x = 12,333.78

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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.