Home / 13,075.13-18,044.75-7,486.49

Finding the Fourth Proportional to 13,075.13, 18,044.75 and 7,486.49

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Solution

The fourth proportional to 13,075.13, 18,044.75 and 7,486.49 is: 10,331.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.13 : 18,044.75 = 7,486.49 : x
  2. Step 2: Convert to fraction form
    13,075.13/18,044.75 = 7,486.49/x
  3. Step 3: Cross multiply
    13,075.13x = 18,044.75 × 7,486.49
  4. Step 4: Simplify right side
    13,075.13x = 135,091,803.00
  5. Step 5: Solve for x
    x = 135,091,803.00/13,075.13
  6. Step 6: Final answer
    x = 10,331.97

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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.