Home / 13,895.93-19,178.30-8,521.58

Finding the Fourth Proportional to 13,895.93, 19,178.30 and 8,521.58

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Solution

The fourth proportional to 13,895.93, 19,178.30 and 8,521.58 is: 11,760.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.93 : 19,178.30 = 8,521.58 : x
  2. Step 2: Convert to fraction form
    13,895.93/19,178.30 = 8,521.58/x
  3. Step 3: Cross multiply
    13,895.93x = 19,178.30 × 8,521.58
  4. Step 4: Simplify right side
    13,895.93x = 163,429,375.11
  5. Step 5: Solve for x
    x = 163,429,375.11/13,895.93
  6. Step 6: Final answer
    x = 11,760.95

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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.