Home / 13,359.45-18,435.96-7,390.99

Finding the Fourth Proportional to 13,359.45, 18,435.96 and 7,390.99

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Solution

The fourth proportional to 13,359.45, 18,435.96 and 7,390.99 is: 10,199.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.45 : 18,435.96 = 7,390.99 : x
  2. Step 2: Convert to fraction form
    13,359.45/18,435.96 = 7,390.99/x
  3. Step 3: Cross multiply
    13,359.45x = 18,435.96 × 7,390.99
  4. Step 4: Simplify right side
    13,359.45x = 136,260,019.05
  5. Step 5: Solve for x
    x = 136,260,019.05/13,359.45
  6. Step 6: Final answer
    x = 10,199.52

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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.