Home / 14,925.21-20,609.25-13,329.05

Finding the Fourth Proportional to 14,925.21, 20,609.25 and 13,329.05

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Solution

The fourth proportional to 14,925.21, 20,609.25 and 13,329.05 is: 18,405.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,925.21 : 20,609.25 = 13,329.05 : x
  2. Step 2: Convert to fraction form
    14,925.21/20,609.25 = 13,329.05/x
  3. Step 3: Cross multiply
    14,925.21x = 20,609.25 × 13,329.05
  4. Step 4: Simplify right side
    14,925.21x = 274,701,620.67
  5. Step 5: Solve for x
    x = 274,701,620.67/14,925.21
  6. Step 6: Final answer
    x = 18,405.21

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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.