Home / 14,291.16-19,721.98-8,240

Finding the Fourth Proportional to 14,291.16, 19,721.98 and 8,240

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Solution

The fourth proportional to 14,291.16, 19,721.98 and 8,240 is: 11,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.16 : 19,721.98 = 8,240 : x
  2. Step 2: Convert to fraction form
    14,291.16/19,721.98 = 8,240/x
  3. Step 3: Cross multiply
    14,291.16x = 19,721.98 × 8,240
  4. Step 4: Simplify right side
    14,291.16x = 162,509,115.20
  5. Step 5: Solve for x
    x = 162,509,115.20/14,291.16
  6. Step 6: Final answer
    x = 11,371.30

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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.