Home / 19,161.40-26,442.45-10,777.90

Finding the Fourth Proportional to 19,161.40, 26,442.45 and 10,777.90

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Solution

The fourth proportional to 19,161.40, 26,442.45 and 10,777.90 is: 14,873.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,161.40 : 26,442.45 = 10,777.90 : x
  2. Step 2: Convert to fraction form
    19,161.40/26,442.45 = 10,777.90/x
  3. Step 3: Cross multiply
    19,161.40x = 26,442.45 × 10,777.90
  4. Step 4: Simplify right side
    19,161.40x = 284,994,081.86
  5. Step 5: Solve for x
    x = 284,994,081.86/19,161.40
  6. Step 6: Final answer
    x = 14,873.34

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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.