Home / 14,113.50-21,153.69-5,782.38

Finding the Fourth Proportional to 14,113.50, 21,153.69 and 5,782.38

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Solution

The fourth proportional to 14,113.50, 21,153.69 and 5,782.38 is: 8,666.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,113.50 : 21,153.69 = 5,782.38 : x
  2. Step 2: Convert to fraction form
    14,113.50/21,153.69 = 5,782.38/x
  3. Step 3: Cross multiply
    14,113.50x = 21,153.69 × 5,782.38
  4. Step 4: Simplify right side
    14,113.50x = 122,318,673.98
  5. Step 5: Solve for x
    x = 122,318,673.98/14,113.50
  6. Step 6: Final answer
    x = 8,666.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.