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Finding the Fourth Proportional to 13,952.03, 20,929.98 and 7,378.68

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Solution

The fourth proportional to 13,952.03, 20,929.98 and 7,378.68 is: 11,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.03 : 20,929.98 = 7,378.68 : x
  2. Step 2: Convert to fraction form
    13,952.03/20,929.98 = 7,378.68/x
  3. Step 3: Cross multiply
    13,952.03x = 20,929.98 × 7,378.68
  4. Step 4: Simplify right side
    13,952.03x = 154,435,624.83
  5. Step 5: Solve for x
    x = 154,435,624.83/13,952.03
  6. Step 6: Final answer
    x = 11,069.05

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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.