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Finding the Fourth Proportional to 12,503.40, 18,752.40 and 5,483.40

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Solution

The fourth proportional to 12,503.40, 18,752.40 and 5,483.40 is: 8,223.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.40 : 18,752.40 = 5,483.40 : x
  2. Step 2: Convert to fraction form
    12,503.40/18,752.40 = 5,483.40/x
  3. Step 3: Cross multiply
    12,503.40x = 18,752.40 × 5,483.40
  4. Step 4: Simplify right side
    12,503.40x = 102,826,910.16
  5. Step 5: Solve for x
    x = 102,826,910.16/12,503.40
  6. Step 6: Final answer
    x = 8,223.92

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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.