Home / 13,021.08-17,969.26-7,278.29

Finding the Fourth Proportional to 13,021.08, 17,969.26 and 7,278.29

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Solution

The fourth proportional to 13,021.08, 17,969.26 and 7,278.29 is: 10,044.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.08 : 17,969.26 = 7,278.29 : x
  2. Step 2: Convert to fraction form
    13,021.08/17,969.26 = 7,278.29/x
  3. Step 3: Cross multiply
    13,021.08x = 17,969.26 × 7,278.29
  4. Step 4: Simplify right side
    13,021.08x = 130,785,395.52
  5. Step 5: Solve for x
    x = 130,785,395.52/13,021.08
  6. Step 6: Final answer
    x = 10,044.13

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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.