Home / 10,620.99-14,656.68-5,905.44

Finding the Fourth Proportional to 10,620.99, 14,656.68 and 5,905.44

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Solution

The fourth proportional to 10,620.99, 14,656.68 and 5,905.44 is: 8,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.99 : 14,656.68 = 5,905.44 : x
  2. Step 2: Convert to fraction form
    10,620.99/14,656.68 = 5,905.44/x
  3. Step 3: Cross multiply
    10,620.99x = 14,656.68 × 5,905.44
  4. Step 4: Simplify right side
    10,620.99x = 86,554,144.34
  5. Step 5: Solve for x
    x = 86,554,144.34/10,620.99
  6. Step 6: Final answer
    x = 8,149.35

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1.5x scale

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.