Home / 13,622.37-20,336.34-11,528.31

Finding the Fourth Proportional to 13,622.37, 20,336.34 and 11,528.31

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Solution

The fourth proportional to 13,622.37, 20,336.34 and 11,528.31 is: 17,210.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.37 : 20,336.34 = 11,528.31 : x
  2. Step 2: Convert to fraction form
    13,622.37/20,336.34 = 11,528.31/x
  3. Step 3: Cross multiply
    13,622.37x = 20,336.34 × 11,528.31
  4. Step 4: Simplify right side
    13,622.37x = 234,443,631.79
  5. Step 5: Solve for x
    x = 234,443,631.79/13,622.37
  6. Step 6: Final answer
    x = 17,210.19

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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.