Home / 18,937.98-26,130.33-12,668.58

Finding the Fourth Proportional to 18,937.98, 26,130.33 and 12,668.58

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Solution

The fourth proportional to 18,937.98, 26,130.33 and 12,668.58 is: 17,479.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,937.98 : 26,130.33 = 12,668.58 : x
  2. Step 2: Convert to fraction form
    18,937.98/26,130.33 = 12,668.58/x
  3. Step 3: Cross multiply
    18,937.98x = 26,130.33 × 12,668.58
  4. Step 4: Simplify right side
    18,937.98x = 331,034,176.03
  5. Step 5: Solve for x
    x = 331,034,176.03/18,937.98
  6. Step 6: Final answer
    x = 17,479.91

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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.