Home / 13,479.18-18,600.22-7,736.68

Finding the Fourth Proportional to 13,479.18, 18,600.22 and 7,736.68

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Solution

The fourth proportional to 13,479.18, 18,600.22 and 7,736.68 is: 10,676.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.18 : 18,600.22 = 7,736.68 : x
  2. Step 2: Convert to fraction form
    13,479.18/18,600.22 = 7,736.68/x
  3. Step 3: Cross multiply
    13,479.18x = 18,600.22 × 7,736.68
  4. Step 4: Simplify right side
    13,479.18x = 143,903,950.07
  5. Step 5: Solve for x
    x = 143,903,950.07/13,479.18
  6. Step 6: Final answer
    x = 10,676.02

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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.