Home / 13,361.71-20,031.58-7,801.33

Finding the Fourth Proportional to 13,361.71, 20,031.58 and 7,801.33

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Solution

The fourth proportional to 13,361.71, 20,031.58 and 7,801.33 is: 11,695.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.71 : 20,031.58 = 7,801.33 : x
  2. Step 2: Convert to fraction form
    13,361.71/20,031.58 = 7,801.33/x
  3. Step 3: Cross multiply
    13,361.71x = 20,031.58 × 7,801.33
  4. Step 4: Simplify right side
    13,361.71x = 156,272,966.00
  5. Step 5: Solve for x
    x = 156,272,966.00/13,361.71
  6. Step 6: Final answer
    x = 11,695.58

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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.