Home / 13,075.69-18,044.57-7,107.36

Finding the Fourth Proportional to 13,075.69, 18,044.57 and 7,107.36

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Solution

The fourth proportional to 13,075.69, 18,044.57 and 7,107.36 is: 9,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.69 : 18,044.57 = 7,107.36 : x
  2. Step 2: Convert to fraction form
    13,075.69/18,044.57 = 7,107.36/x
  3. Step 3: Cross multiply
    13,075.69x = 18,044.57 × 7,107.36
  4. Step 4: Simplify right side
    13,075.69x = 128,249,255.04
  5. Step 5: Solve for x
    x = 128,249,255.04/13,075.69
  6. Step 6: Final answer
    x = 9,808.22

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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.