Home / 16,907.40-23,318.08-12,668.47

Finding the Fourth Proportional to 16,907.40, 23,318.08 and 12,668.47

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Solution

The fourth proportional to 16,907.40, 23,318.08 and 12,668.47 is: 17,471.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,907.40 : 23,318.08 = 12,668.47 : x
  2. Step 2: Convert to fraction form
    16,907.40/23,318.08 = 12,668.47/x
  3. Step 3: Cross multiply
    16,907.40x = 23,318.08 × 12,668.47
  4. Step 4: Simplify right side
    16,907.40x = 295,404,306.97
  5. Step 5: Solve for x
    x = 295,404,306.97/16,907.40
  6. Step 6: Final answer
    x = 17,471.89

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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.