Home / 12,904.94-19,357.35-8,521.35

Finding the Fourth Proportional to 12,904.94, 19,357.35 and 8,521.35

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Solution

The fourth proportional to 12,904.94, 19,357.35 and 8,521.35 is: 12,781.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.94 : 19,357.35 = 8,521.35 : x
  2. Step 2: Convert to fraction form
    12,904.94/19,357.35 = 8,521.35/x
  3. Step 3: Cross multiply
    12,904.94x = 19,357.35 × 8,521.35
  4. Step 4: Simplify right side
    12,904.94x = 164,950,754.42
  5. Step 5: Solve for x
    x = 164,950,754.42/12,904.94
  6. Step 6: Final answer
    x = 12,781.99

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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.