Home / 13,127.94-19,705.98-7,289.46

Finding the Fourth Proportional to 13,127.94, 19,705.98 and 7,289.46

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Solution

The fourth proportional to 13,127.94, 19,705.98 and 7,289.46 is: 10,942.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.94 : 19,705.98 = 7,289.46 : x
  2. Step 2: Convert to fraction form
    13,127.94/19,705.98 = 7,289.46/x
  3. Step 3: Cross multiply
    13,127.94x = 19,705.98 × 7,289.46
  4. Step 4: Simplify right side
    13,127.94x = 143,645,952.97
  5. Step 5: Solve for x
    x = 143,645,952.97/13,127.94
  6. Step 6: Final answer
    x = 10,942.00

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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.