Home / 19,218.36-26,520.64-10,720.35

Finding the Fourth Proportional to 19,218.36, 26,520.64 and 10,720.35

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Solution

The fourth proportional to 19,218.36, 26,520.64 and 10,720.35 is: 14,793.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.36 : 26,520.64 = 10,720.35 : x
  2. Step 2: Convert to fraction form
    19,218.36/26,520.64 = 10,720.35/x
  3. Step 3: Cross multiply
    19,218.36x = 26,520.64 × 10,720.35
  4. Step 4: Simplify right side
    19,218.36x = 284,310,546.37
  5. Step 5: Solve for x
    x = 284,310,546.37/19,218.36
  6. Step 6: Final answer
    x = 14,793.69

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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.