Home / 13,626.06-18,804.41-7,657.57

Finding the Fourth Proportional to 13,626.06, 18,804.41 and 7,657.57

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Solution

The fourth proportional to 13,626.06, 18,804.41 and 7,657.57 is: 10,567.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.06 : 18,804.41 = 7,657.57 : x
  2. Step 2: Convert to fraction form
    13,626.06/18,804.41 = 7,657.57/x
  3. Step 3: Cross multiply
    13,626.06x = 18,804.41 × 7,657.57
  4. Step 4: Simplify right side
    13,626.06x = 143,996,085.88
  5. Step 5: Solve for x
    x = 143,996,085.88/13,626.06
  6. Step 6: Final answer
    x = 10,567.70

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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.