Home / 13,166.31-19,738.74-5,765.13

Finding the Fourth Proportional to 13,166.31, 19,738.74 and 5,765.13

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Solution

The fourth proportional to 13,166.31, 19,738.74 and 5,765.13 is: 8,643.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.31 : 19,738.74 = 5,765.13 : x
  2. Step 2: Convert to fraction form
    13,166.31/19,738.74 = 5,765.13/x
  3. Step 3: Cross multiply
    13,166.31x = 19,738.74 × 5,765.13
  4. Step 4: Simplify right side
    13,166.31x = 113,796,402.14
  5. Step 5: Solve for x
    x = 113,796,402.14/13,166.31
  6. Step 6: Final answer
    x = 8,643.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.