Home / 12,885.36-19,317.51-8,529.18

Finding the Fourth Proportional to 12,885.36, 19,317.51 and 8,529.18

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Solution

The fourth proportional to 12,885.36, 19,317.51 and 8,529.18 is: 12,786.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885.36 : 19,317.51 = 8,529.18 : x
  2. Step 2: Convert to fraction form
    12,885.36/19,317.51 = 8,529.18/x
  3. Step 3: Cross multiply
    12,885.36x = 19,317.51 × 8,529.18
  4. Step 4: Simplify right side
    12,885.36x = 164,762,519.94
  5. Step 5: Solve for x
    x = 164,762,519.94/12,885.36
  6. Step 6: Final answer
    x = 12,786.80

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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.