Home / 14,929.89-20,603.73-8,216

Finding the Fourth Proportional to 14,929.89, 20,603.73 and 8,216

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Solution

The fourth proportional to 14,929.89, 20,603.73 and 8,216 is: 11,338.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,929.89 : 20,603.73 = 8,216 : x
  2. Step 2: Convert to fraction form
    14,929.89/20,603.73 = 8,216/x
  3. Step 3: Cross multiply
    14,929.89x = 20,603.73 × 8,216
  4. Step 4: Simplify right side
    14,929.89x = 169,280,245.68
  5. Step 5: Solve for x
    x = 169,280,245.68/14,929.89
  6. Step 6: Final answer
    x = 11,338.35

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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.