Home / 14,738.50-20,356.41-9,761.86

Finding the Fourth Proportional to 14,738.50, 20,356.41 and 9,761.86

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Solution

The fourth proportional to 14,738.50, 20,356.41 and 9,761.86 is: 13,482.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,738.50 : 20,356.41 = 9,761.86 : x
  2. Step 2: Convert to fraction form
    14,738.50/20,356.41 = 9,761.86/x
  3. Step 3: Cross multiply
    14,738.50x = 20,356.41 × 9,761.86
  4. Step 4: Simplify right side
    14,738.50x = 198,716,424.52
  5. Step 5: Solve for x
    x = 198,716,424.52/14,738.50
  6. Step 6: Final answer
    x = 13,482.81

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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.