Home / 14,556.60-21,830.10-5,321.40

Finding the Fourth Proportional to 14,556.60, 21,830.10 and 5,321.40

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Solution

The fourth proportional to 14,556.60, 21,830.10 and 5,321.40 is: 7,980.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,556.60 : 21,830.10 = 5,321.40 : x
  2. Step 2: Convert to fraction form
    14,556.60/21,830.10 = 5,321.40/x
  3. Step 3: Cross multiply
    14,556.60x = 21,830.10 × 5,321.40
  4. Step 4: Simplify right side
    14,556.60x = 116,166,694.14
  5. Step 5: Solve for x
    x = 116,166,694.14/14,556.60
  6. Step 6: Final answer
    x = 7,980.35

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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.