Home / 19,309.78-26,647.98-10,811.86

Finding the Fourth Proportional to 19,309.78, 26,647.98 and 10,811.86

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Solution

The fourth proportional to 19,309.78, 26,647.98 and 10,811.86 is: 14,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309.78 : 26,647.98 = 10,811.86 : x
  2. Step 2: Convert to fraction form
    19,309.78/26,647.98 = 10,811.86/x
  3. Step 3: Cross multiply
    19,309.78x = 26,647.98 × 10,811.86
  4. Step 4: Simplify right side
    19,309.78x = 288,114,229.04
  5. Step 5: Solve for x
    x = 288,114,229.04/19,309.78
  6. Step 6: Final answer
    x = 14,920.64

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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.