Home / 14,428.26-19,907.54-8,140.66

Finding the Fourth Proportional to 14,428.26, 19,907.54 and 8,140.66

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Solution

The fourth proportional to 14,428.26, 19,907.54 and 8,140.66 is: 11,232.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428.26 : 19,907.54 = 8,140.66 : x
  2. Step 2: Convert to fraction form
    14,428.26/19,907.54 = 8,140.66/x
  3. Step 3: Cross multiply
    14,428.26x = 19,907.54 × 8,140.66
  4. Step 4: Simplify right side
    14,428.26x = 162,060,514.58
  5. Step 5: Solve for x
    x = 162,060,514.58/14,428.26
  6. Step 6: Final answer
    x = 11,232.16

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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.