Home / 12,621.06-18,834.35-11,085.30

Finding the Fourth Proportional to 12,621.06, 18,834.35 and 11,085.30

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Solution

The fourth proportional to 12,621.06, 18,834.35 and 11,085.30 is: 16,542.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.06 : 18,834.35 = 11,085.30 : x
  2. Step 2: Convert to fraction form
    12,621.06/18,834.35 = 11,085.30/x
  3. Step 3: Cross multiply
    12,621.06x = 18,834.35 × 11,085.30
  4. Step 4: Simplify right side
    12,621.06x = 208,784,364.63
  5. Step 5: Solve for x
    x = 208,784,364.63/12,621.06
  6. Step 6: Final answer
    x = 16,542.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.