Home / 13,772.84-19,006.52-7,485.22

Finding the Fourth Proportional to 13,772.84, 19,006.52 and 7,485.22

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Solution

The fourth proportional to 13,772.84, 19,006.52 and 7,485.22 is: 10,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.84 : 19,006.52 = 7,485.22 : x
  2. Step 2: Convert to fraction form
    13,772.84/19,006.52 = 7,485.22/x
  3. Step 3: Cross multiply
    13,772.84x = 19,006.52 × 7,485.22
  4. Step 4: Simplify right side
    13,772.84x = 142,267,983.63
  5. Step 5: Solve for x
    x = 142,267,983.63/13,772.84
  6. Step 6: Final answer
    x = 10,329.60

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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.