Home / 18,890.36-26,068-10,506.68

Finding the Fourth Proportional to 18,890.36, 26,068 and 10,506.68

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Solution

The fourth proportional to 18,890.36, 26,068 and 10,506.68 is: 14,498.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.36 : 26,068 = 10,506.68 : x
  2. Step 2: Convert to fraction form
    18,890.36/26,068 = 10,506.68/x
  3. Step 3: Cross multiply
    18,890.36x = 26,068 × 10,506.68
  4. Step 4: Simplify right side
    18,890.36x = 273,888,134.24
  5. Step 5: Solve for x
    x = 273,888,134.24/18,890.36
  6. Step 6: Final answer
    x = 14,498.83

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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.