Home / 13,933.78-20,900.88-4,574.77

Finding the Fourth Proportional to 13,933.78, 20,900.88 and 4,574.77

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Solution

The fourth proportional to 13,933.78, 20,900.88 and 4,574.77 is: 6,862.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.78 : 20,900.88 = 4,574.77 : x
  2. Step 2: Convert to fraction form
    13,933.78/20,900.88 = 4,574.77/x
  3. Step 3: Cross multiply
    13,933.78x = 20,900.88 × 4,574.77
  4. Step 4: Simplify right side
    13,933.78x = 95,616,718.80
  5. Step 5: Solve for x
    x = 95,616,718.80/13,933.78
  6. Step 6: Final answer
    x = 6,862.22

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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.