Home / 13,799.81-19,043.75-7,512.19

Finding the Fourth Proportional to 13,799.81, 19,043.75 and 7,512.19

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Solution

The fourth proportional to 13,799.81, 19,043.75 and 7,512.19 is: 10,366.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.81 : 19,043.75 = 7,512.19 : x
  2. Step 2: Convert to fraction form
    13,799.81/19,043.75 = 7,512.19/x
  3. Step 3: Cross multiply
    13,799.81x = 19,043.75 × 7,512.19
  4. Step 4: Simplify right side
    13,799.81x = 143,060,183.14
  5. Step 5: Solve for x
    x = 143,060,183.14/13,799.81
  6. Step 6: Final answer
    x = 10,366.82

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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.