Home / 14,409.09-19,889.51-8,442.69

Finding the Fourth Proportional to 14,409.09, 19,889.51 and 8,442.69

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Solution

The fourth proportional to 14,409.09, 19,889.51 and 8,442.69 is: 11,653.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,409.09 : 19,889.51 = 8,442.69 : x
  2. Step 2: Convert to fraction form
    14,409.09/19,889.51 = 8,442.69/x
  3. Step 3: Cross multiply
    14,409.09x = 19,889.51 × 8,442.69
  4. Step 4: Simplify right side
    14,409.09x = 167,920,924.97
  5. Step 5: Solve for x
    x = 167,920,924.97/14,409.09
  6. Step 6: Final answer
    x = 11,653.82

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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.