Home / 19,218.42-26,521.38-10,720.55

Finding the Fourth Proportional to 19,218.42, 26,521.38 and 10,720.55

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Solution

The fourth proportional to 19,218.42, 26,521.38 and 10,720.55 is: 14,794.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.42 : 26,521.38 = 10,720.55 : x
  2. Step 2: Convert to fraction form
    19,218.42/26,521.38 = 10,720.55/x
  3. Step 3: Cross multiply
    19,218.42x = 26,521.38 × 10,720.55
  4. Step 4: Simplify right side
    19,218.42x = 284,323,647.75
  5. Step 5: Solve for x
    x = 284,323,647.75/19,218.42
  6. Step 6: Final answer
    x = 14,794.33

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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.