Home / 14,386.32-21,579.64-6,485.84

Finding the Fourth Proportional to 14,386.32, 21,579.64 and 6,485.84

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Solution

The fourth proportional to 14,386.32, 21,579.64 and 6,485.84 is: 9,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.32 : 21,579.64 = 6,485.84 : x
  2. Step 2: Convert to fraction form
    14,386.32/21,579.64 = 6,485.84/x
  3. Step 3: Cross multiply
    14,386.32x = 21,579.64 × 6,485.84
  4. Step 4: Simplify right side
    14,386.32x = 139,962,092.30
  5. Step 5: Solve for x
    x = 139,962,092.30/14,386.32
  6. Step 6: Final answer
    x = 9,728.83

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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.