Home / 13,075.29-18,044.28-7,107.21

Finding the Fourth Proportional to 13,075.29, 18,044.28 and 7,107.21

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Solution

The fourth proportional to 13,075.29, 18,044.28 and 7,107.21 is: 9,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.29 : 18,044.28 = 7,107.21 : x
  2. Step 2: Convert to fraction form
    13,075.29/18,044.28 = 7,107.21/x
  3. Step 3: Cross multiply
    13,075.29x = 18,044.28 × 7,107.21
  4. Step 4: Simplify right side
    13,075.29x = 128,244,487.26
  5. Step 5: Solve for x
    x = 128,244,487.26/13,075.29
  6. Step 6: Final answer
    x = 9,808.16

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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.