Home / 14,260.14-21,399.39-7,690.86

Finding the Fourth Proportional to 14,260.14, 21,399.39 and 7,690.86

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Solution

The fourth proportional to 14,260.14, 21,399.39 and 7,690.86 is: 11,541.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.14 : 21,399.39 = 7,690.86 : x
  2. Step 2: Convert to fraction form
    14,260.14/21,399.39 = 7,690.86/x
  3. Step 3: Cross multiply
    14,260.14x = 21,399.39 × 7,690.86
  4. Step 4: Simplify right side
    14,260.14x = 164,579,712.58
  5. Step 5: Solve for x
    x = 164,579,712.58/14,260.14
  6. Step 6: Final answer
    x = 11,541.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.