Home / 12,320.21-18,483.05-3,554.44

Finding the Fourth Proportional to 12,320.21, 18,483.05 and 3,554.44

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Solution

The fourth proportional to 12,320.21, 18,483.05 and 3,554.44 is: 5,332.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.21 : 18,483.05 = 3,554.44 : x
  2. Step 2: Convert to fraction form
    12,320.21/18,483.05 = 3,554.44/x
  3. Step 3: Cross multiply
    12,320.21x = 18,483.05 × 3,554.44
  4. Step 4: Simplify right side
    12,320.21x = 65,696,854.92
  5. Step 5: Solve for x
    x = 65,696,854.92/12,320.21
  6. Step 6: Final answer
    x = 5,332.44

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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.