Home / 15,270.41-21,074.10-8,556.46

Finding the Fourth Proportional to 15,270.41, 21,074.10 and 8,556.46

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Solution

The fourth proportional to 15,270.41, 21,074.10 and 8,556.46 is: 11,808.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270.41 : 21,074.10 = 8,556.46 : x
  2. Step 2: Convert to fraction form
    15,270.41/21,074.10 = 8,556.46/x
  3. Step 3: Cross multiply
    15,270.41x = 21,074.10 × 8,556.46
  4. Step 4: Simplify right side
    15,270.41x = 180,319,693.69
  5. Step 5: Solve for x
    x = 180,319,693.69/15,270.41
  6. Step 6: Final answer
    x = 11,808.44

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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.