Home / 14,319.69-19,761.38-10,728.29

Finding the Fourth Proportional to 14,319.69, 19,761.38 and 10,728.29

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Solution

The fourth proportional to 14,319.69, 19,761.38 and 10,728.29 is: 14,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319.69 : 19,761.38 = 10,728.29 : x
  2. Step 2: Convert to fraction form
    14,319.69/19,761.38 = 10,728.29/x
  3. Step 3: Cross multiply
    14,319.69x = 19,761.38 × 10,728.29
  4. Step 4: Simplify right side
    14,319.69x = 212,005,662.99
  5. Step 5: Solve for x
    x = 212,005,662.99/14,319.69
  6. Step 6: Final answer
    x = 14,805.19

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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.