Home / 12,307.12-16,982.73-6,855.77

Finding the Fourth Proportional to 12,307.12, 16,982.73 and 6,855.77

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Solution

The fourth proportional to 12,307.12, 16,982.73 and 6,855.77 is: 9,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.12 : 16,982.73 = 6,855.77 : x
  2. Step 2: Convert to fraction form
    12,307.12/16,982.73 = 6,855.77/x
  3. Step 3: Cross multiply
    12,307.12x = 16,982.73 × 6,855.77
  4. Step 4: Simplify right side
    12,307.12x = 116,429,733.31
  5. Step 5: Solve for x
    x = 116,429,733.31/12,307.12
  6. Step 6: Final answer
    x = 9,460.36

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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.