Home / 13,245.21-19,869.66-4,477.77

Finding the Fourth Proportional to 13,245.21, 19,869.66 and 4,477.77

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Solution

The fourth proportional to 13,245.21, 19,869.66 and 4,477.77 is: 6,717.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.21 : 19,869.66 = 4,477.77 : x
  2. Step 2: Convert to fraction form
    13,245.21/19,869.66 = 4,477.77/x
  3. Step 3: Cross multiply
    13,245.21x = 19,869.66 × 4,477.77
  4. Step 4: Simplify right side
    13,245.21x = 88,971,767.46
  5. Step 5: Solve for x
    x = 88,971,767.46/13,245.21
  6. Step 6: Final answer
    x = 6,717.28

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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.