Home / 12,636.57-18,954.87-5,236.08

Finding the Fourth Proportional to 12,636.57, 18,954.87 and 5,236.08

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Solution

The fourth proportional to 12,636.57, 18,954.87 and 5,236.08 is: 7,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.57 : 18,954.87 = 5,236.08 : x
  2. Step 2: Convert to fraction form
    12,636.57/18,954.87 = 5,236.08/x
  3. Step 3: Cross multiply
    12,636.57x = 18,954.87 × 5,236.08
  4. Step 4: Simplify right side
    12,636.57x = 99,249,215.71
  5. Step 5: Solve for x
    x = 99,249,215.71/12,636.57
  6. Step 6: Final answer
    x = 7,854.13

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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.