Home / 16,801.80-23,159.16-13,433.88

Finding the Fourth Proportional to 16,801.80, 23,159.16 and 13,433.88

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Solution

The fourth proportional to 16,801.80, 23,159.16 and 13,433.88 is: 18,516.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,801.80 : 23,159.16 = 13,433.88 : x
  2. Step 2: Convert to fraction form
    16,801.80/23,159.16 = 13,433.88/x
  3. Step 3: Cross multiply
    16,801.80x = 23,159.16 × 13,433.88
  4. Step 4: Simplify right side
    16,801.80x = 311,117,376.34
  5. Step 5: Solve for x
    x = 311,117,376.34/16,801.80
  6. Step 6: Final answer
    x = 18,516.91

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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.