Home / 13,395.96-18,486.48-7,427.68

Finding the Fourth Proportional to 13,395.96, 18,486.48 and 7,427.68

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Solution

The fourth proportional to 13,395.96, 18,486.48 and 7,427.68 is: 10,250.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.96 : 18,486.48 = 7,427.68 : x
  2. Step 2: Convert to fraction form
    13,395.96/18,486.48 = 7,427.68/x
  3. Step 3: Cross multiply
    13,395.96x = 18,486.48 × 7,427.68
  4. Step 4: Simplify right side
    13,395.96x = 137,311,657.77
  5. Step 5: Solve for x
    x = 137,311,657.77/13,395.96
  6. Step 6: Final answer
    x = 10,250.23

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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.