Home / 13,809.69-19,057.41-7,521.93

Finding the Fourth Proportional to 13,809.69, 19,057.41 and 7,521.93

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Solution

The fourth proportional to 13,809.69, 19,057.41 and 7,521.93 is: 10,380.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809.69 : 19,057.41 = 7,521.93 : x
  2. Step 2: Convert to fraction form
    13,809.69/19,057.41 = 7,521.93/x
  3. Step 3: Cross multiply
    13,809.69x = 19,057.41 × 7,521.93
  4. Step 4: Simplify right side
    13,809.69x = 143,348,504.00
  5. Step 5: Solve for x
    x = 143,348,504.00/13,809.69
  6. Step 6: Final answer
    x = 10,380.28

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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.