Home / 13,075.72-18,044.61-7,107.40

Finding the Fourth Proportional to 13,075.72, 18,044.61 and 7,107.40

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Solution

The fourth proportional to 13,075.72, 18,044.61 and 7,107.40 is: 9,808.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.72 : 18,044.61 = 7,107.40 : x
  2. Step 2: Convert to fraction form
    13,075.72/18,044.61 = 7,107.40/x
  3. Step 3: Cross multiply
    13,075.72x = 18,044.61 × 7,107.40
  4. Step 4: Simplify right side
    13,075.72x = 128,250,261.11
  5. Step 5: Solve for x
    x = 128,250,261.11/13,075.72
  6. Step 6: Final answer
    x = 9,808.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.