Home / 13,438.19-20,159.73-5,536.32

Finding the Fourth Proportional to 13,438.19, 20,159.73 and 5,536.32

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Solution

The fourth proportional to 13,438.19, 20,159.73 and 5,536.32 is: 8,305.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.19 : 20,159.73 = 5,536.32 : x
  2. Step 2: Convert to fraction form
    13,438.19/20,159.73 = 5,536.32/x
  3. Step 3: Cross multiply
    13,438.19x = 20,159.73 × 5,536.32
  4. Step 4: Simplify right side
    13,438.19x = 111,610,661.91
  5. Step 5: Solve for x
    x = 111,610,661.91/13,438.19
  6. Step 6: Final answer
    x = 8,305.48

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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.