Home / 12,307.06-16,970.30-8,321.26

Finding the Fourth Proportional to 12,307.06, 16,970.30 and 8,321.26

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Solution

The fourth proportional to 12,307.06, 16,970.30 and 8,321.26 is: 11,474.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.06 : 16,970.30 = 8,321.26 : x
  2. Step 2: Convert to fraction form
    12,307.06/16,970.30 = 8,321.26/x
  3. Step 3: Cross multiply
    12,307.06x = 16,970.30 × 8,321.26
  4. Step 4: Simplify right side
    12,307.06x = 141,214,278.58
  5. Step 5: Solve for x
    x = 141,214,278.58/12,307.06
  6. Step 6: Final answer
    x = 11,474.25

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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.