Home / 12,646.21-18,958.60-5,246.05

Finding the Fourth Proportional to 12,646.21, 18,958.60 and 5,246.05

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Solution

The fourth proportional to 12,646.21, 18,958.60 and 5,246.05 is: 7,864.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.21 : 18,958.60 = 5,246.05 : x
  2. Step 2: Convert to fraction form
    12,646.21/18,958.60 = 5,246.05/x
  3. Step 3: Cross multiply
    12,646.21x = 18,958.60 × 5,246.05
  4. Step 4: Simplify right side
    12,646.21x = 99,457,642.51
  5. Step 5: Solve for x
    x = 99,457,642.51/12,646.21
  6. Step 6: Final answer
    x = 7,864.62

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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.