Home / 12,428.59-18,636.99-4,525.51

Finding the Fourth Proportional to 12,428.59, 18,636.99 and 4,525.51

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Solution

The fourth proportional to 12,428.59, 18,636.99 and 4,525.51 is: 6,786.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428.59 : 18,636.99 = 4,525.51 : x
  2. Step 2: Convert to fraction form
    12,428.59/18,636.99 = 4,525.51/x
  3. Step 3: Cross multiply
    12,428.59x = 18,636.99 × 4,525.51
  4. Step 4: Simplify right side
    12,428.59x = 84,341,884.61
  5. Step 5: Solve for x
    x = 84,341,884.61/12,428.59
  6. Step 6: Final answer
    x = 6,786.12

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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.