Home / 15,740.66-21,722.19-9,026.54

Finding the Fourth Proportional to 15,740.66, 21,722.19 and 9,026.54

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Solution

The fourth proportional to 15,740.66, 21,722.19 and 9,026.54 is: 12,456.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.66 : 21,722.19 = 9,026.54 : x
  2. Step 2: Convert to fraction form
    15,740.66/21,722.19 = 9,026.54/x
  3. Step 3: Cross multiply
    15,740.66x = 21,722.19 × 9,026.54
  4. Step 4: Simplify right side
    15,740.66x = 196,076,216.92
  5. Step 5: Solve for x
    x = 196,076,216.92/15,740.66
  6. Step 6: Final answer
    x = 12,456.67

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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.