Home / 12,738.96-19,088.24-8,563.59

Finding the Fourth Proportional to 12,738.96, 19,088.24 and 8,563.59

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Solution

The fourth proportional to 12,738.96, 19,088.24 and 8,563.59 is: 12,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,738.96 : 19,088.24 = 8,563.59 : x
  2. Step 2: Convert to fraction form
    12,738.96/19,088.24 = 8,563.59/x
  3. Step 3: Cross multiply
    12,738.96x = 19,088.24 × 8,563.59
  4. Step 4: Simplify right side
    12,738.96x = 163,463,818.36
  5. Step 5: Solve for x
    x = 163,463,818.36/12,738.96
  6. Step 6: Final answer
    x = 12,831.80

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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.