Home / 14,120.19-19,488.20-7,834.59

Finding the Fourth Proportional to 14,120.19, 19,488.20 and 7,834.59

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Solution

The fourth proportional to 14,120.19, 19,488.20 and 7,834.59 is: 10,813.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.19 : 19,488.20 = 7,834.59 : x
  2. Step 2: Convert to fraction form
    14,120.19/19,488.20 = 7,834.59/x
  3. Step 3: Cross multiply
    14,120.19x = 19,488.20 × 7,834.59
  4. Step 4: Simplify right side
    14,120.19x = 152,682,017.67
  5. Step 5: Solve for x
    x = 152,682,017.67/14,120.19
  6. Step 6: Final answer
    x = 10,813.03

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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.