Home / 19,277.20-26,607.18-12,111.40

Finding the Fourth Proportional to 19,277.20, 26,607.18 and 12,111.40

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Solution

The fourth proportional to 19,277.20, 26,607.18 and 12,111.40 is: 16,716.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,277.20 : 26,607.18 = 12,111.40 : x
  2. Step 2: Convert to fraction form
    19,277.20/26,607.18 = 12,111.40/x
  3. Step 3: Cross multiply
    19,277.20x = 26,607.18 × 12,111.40
  4. Step 4: Simplify right side
    19,277.20x = 322,250,199.85
  5. Step 5: Solve for x
    x = 322,250,199.85/19,277.20
  6. Step 6: Final answer
    x = 16,716.65

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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.