Home / 11,970.22-16,516.53-6,664.78

Finding the Fourth Proportional to 11,970.22, 16,516.53 and 6,664.78

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Solution

The fourth proportional to 11,970.22, 16,516.53 and 6,664.78 is: 9,196.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.22 : 16,516.53 = 6,664.78 : x
  2. Step 2: Convert to fraction form
    11,970.22/16,516.53 = 6,664.78/x
  3. Step 3: Cross multiply
    11,970.22x = 16,516.53 × 6,664.78
  4. Step 4: Simplify right side
    11,970.22x = 110,079,038.81
  5. Step 5: Solve for x
    x = 110,079,038.81/11,970.22
  6. Step 6: Final answer
    x = 9,196.07

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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.