Home / 14,151.81-19,620.25-13,364.49

Finding the Fourth Proportional to 14,151.81, 19,620.25 and 13,364.49

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Solution

The fourth proportional to 14,151.81, 19,620.25 and 13,364.49 is: 18,528.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,151.81 : 19,620.25 = 13,364.49 : x
  2. Step 2: Convert to fraction form
    14,151.81/19,620.25 = 13,364.49/x
  3. Step 3: Cross multiply
    14,151.81x = 19,620.25 × 13,364.49
  4. Step 4: Simplify right side
    14,151.81x = 262,214,712.67
  5. Step 5: Solve for x
    x = 262,214,712.67/14,151.81
  6. Step 6: Final answer
    x = 18,528.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.