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Finding the Fourth Proportional to 13,075.39, 18,044.36 and 7,107.39

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Solution

The fourth proportional to 13,075.39, 18,044.36 and 7,107.39 is: 9,808.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.39 : 18,044.36 = 7,107.39 : x
  2. Step 2: Convert to fraction form
    13,075.39/18,044.36 = 7,107.39/x
  3. Step 3: Cross multiply
    13,075.39x = 18,044.36 × 7,107.39
  4. Step 4: Simplify right side
    13,075.39x = 128,248,213.60
  5. Step 5: Solve for x
    x = 128,248,213.60/13,075.39
  6. Step 6: Final answer
    x = 9,808.37

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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.