Home / 13,585.37-18,739.86-8,541.60

Finding the Fourth Proportional to 13,585.37, 18,739.86 and 8,541.60

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Solution

The fourth proportional to 13,585.37, 18,739.86 and 8,541.60 is: 11,782.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.37 : 18,739.86 = 8,541.60 : x
  2. Step 2: Convert to fraction form
    13,585.37/18,739.86 = 8,541.60/x
  3. Step 3: Cross multiply
    13,585.37x = 18,739.86 × 8,541.60
  4. Step 4: Simplify right side
    13,585.37x = 160,068,391.28
  5. Step 5: Solve for x
    x = 160,068,391.28/13,585.37
  6. Step 6: Final answer
    x = 11,782.41

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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.