Home / 15,052.91-20,749.77-12,395.70

Finding the Fourth Proportional to 15,052.91, 20,749.77 and 12,395.70

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Solution

The fourth proportional to 15,052.91, 20,749.77 and 12,395.70 is: 17,086.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,052.91 : 20,749.77 = 12,395.70 : x
  2. Step 2: Convert to fraction form
    15,052.91/20,749.77 = 12,395.70/x
  3. Step 3: Cross multiply
    15,052.91x = 20,749.77 × 12,395.70
  4. Step 4: Simplify right side
    15,052.91x = 257,207,923.99
  5. Step 5: Solve for x
    x = 257,207,923.99/15,052.91
  6. Step 6: Final answer
    x = 17,086.93

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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.