Home / 15,629.19-21,568.67-8,555.60

Finding the Fourth Proportional to 15,629.19, 21,568.67 and 8,555.60

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Solution

The fourth proportional to 15,629.19, 21,568.67 and 8,555.60 is: 11,806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.19 : 21,568.67 = 8,555.60 : x
  2. Step 2: Convert to fraction form
    15,629.19/21,568.67 = 8,555.60/x
  3. Step 3: Cross multiply
    15,629.19x = 21,568.67 × 8,555.60
  4. Step 4: Simplify right side
    15,629.19x = 184,532,762.43
  5. Step 5: Solve for x
    x = 184,532,762.43/15,629.19
  6. Step 6: Final answer
    x = 11,806.93

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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.