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Finding the Fourth Proportional to 14,556.90, 21,851.55 and 7,995.90

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Solution

The fourth proportional to 14,556.90, 21,851.55 and 7,995.90 is: 12,002.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,556.90 : 21,851.55 = 7,995.90 : x
  2. Step 2: Convert to fraction form
    14,556.90/21,851.55 = 7,995.90/x
  3. Step 3: Cross multiply
    14,556.90x = 21,851.55 × 7,995.90
  4. Step 4: Simplify right side
    14,556.90x = 174,722,808.65
  5. Step 5: Solve for x
    x = 174,722,808.65/14,556.90
  6. Step 6: Final answer
    x = 12,002.75

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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.