Home / 13,085.06-19,620.16-8,930.11

Finding the Fourth Proportional to 13,085.06, 19,620.16 and 8,930.11

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Solution

The fourth proportional to 13,085.06, 19,620.16 and 8,930.11 is: 13,390.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.06 : 19,620.16 = 8,930.11 : x
  2. Step 2: Convert to fraction form
    13,085.06/19,620.16 = 8,930.11/x
  3. Step 3: Cross multiply
    13,085.06x = 19,620.16 × 8,930.11
  4. Step 4: Simplify right side
    13,085.06x = 175,210,134.92
  5. Step 5: Solve for x
    x = 175,210,134.92/13,085.06
  6. Step 6: Final answer
    x = 13,390.09

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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.