Home / 13,391.62-18,482.61-12,801.04

Finding the Fourth Proportional to 13,391.62, 18,482.61 and 12,801.04

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Solution

The fourth proportional to 13,391.62, 18,482.61 and 12,801.04 is: 17,667.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391.62 : 18,482.61 = 12,801.04 : x
  2. Step 2: Convert to fraction form
    13,391.62/18,482.61 = 12,801.04/x
  3. Step 3: Cross multiply
    13,391.62x = 18,482.61 × 12,801.04
  4. Step 4: Simplify right side
    13,391.62x = 236,596,629.91
  5. Step 5: Solve for x
    x = 236,596,629.91/13,391.62
  6. Step 6: Final answer
    x = 17,667.51

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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.