Home / 13,080.08-17,971.73-10,422.87

Finding the Fourth Proportional to 13,080.08, 17,971.73 and 10,422.87

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Solution

The fourth proportional to 13,080.08, 17,971.73 and 10,422.87 is: 14,320.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.08 : 17,971.73 = 10,422.87 : x
  2. Step 2: Convert to fraction form
    13,080.08/17,971.73 = 10,422.87/x
  3. Step 3: Cross multiply
    13,080.08x = 17,971.73 × 10,422.87
  4. Step 4: Simplify right side
    13,080.08x = 187,317,005.47
  5. Step 5: Solve for x
    x = 187,317,005.47/13,080.08
  6. Step 6: Final answer
    x = 14,320.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.