Home / 19,154.45-26,418.15-13,108.28

Finding the Fourth Proportional to 19,154.45, 26,418.15 and 13,108.28

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Solution

The fourth proportional to 19,154.45, 26,418.15 and 13,108.28 is: 18,079.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154.45 : 26,418.15 = 13,108.28 : x
  2. Step 2: Convert to fraction form
    19,154.45/26,418.15 = 13,108.28/x
  3. Step 3: Cross multiply
    19,154.45x = 26,418.15 × 13,108.28
  4. Step 4: Simplify right side
    19,154.45x = 346,296,375.19
  5. Step 5: Solve for x
    x = 346,296,375.19/19,154.45
  6. Step 6: Final answer
    x = 18,079.16

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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.