Home / 14,303.05-19,734.99-8,638.72

Finding the Fourth Proportional to 14,303.05, 19,734.99 and 8,638.72

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Solution

The fourth proportional to 14,303.05, 19,734.99 and 8,638.72 is: 11,919.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,303.05 : 19,734.99 = 8,638.72 : x
  2. Step 2: Convert to fraction form
    14,303.05/19,734.99 = 8,638.72/x
  3. Step 3: Cross multiply
    14,303.05x = 19,734.99 × 8,638.72
  4. Step 4: Simplify right side
    14,303.05x = 170,485,052.81
  5. Step 5: Solve for x
    x = 170,485,052.81/14,303.05
  6. Step 6: Final answer
    x = 11,919.49

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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.