Home / 14,111.66-19,477.18-12,692.82

Finding the Fourth Proportional to 14,111.66, 19,477.18 and 12,692.82

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Solution

The fourth proportional to 14,111.66, 19,477.18 and 12,692.82 is: 17,518.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,111.66 : 19,477.18 = 12,692.82 : x
  2. Step 2: Convert to fraction form
    14,111.66/19,477.18 = 12,692.82/x
  3. Step 3: Cross multiply
    14,111.66x = 19,477.18 × 12,692.82
  4. Step 4: Simplify right side
    14,111.66x = 247,220,339.85
  5. Step 5: Solve for x
    x = 247,220,339.85/14,111.66
  6. Step 6: Final answer
    x = 17,518.87

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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.