Home / 13,359.33-18,435.51-7,390.80

Finding the Fourth Proportional to 13,359.33, 18,435.51 and 7,390.80

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Solution

The fourth proportional to 13,359.33, 18,435.51 and 7,390.80 is: 10,199.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.33 : 18,435.51 = 7,390.80 : x
  2. Step 2: Convert to fraction form
    13,359.33/18,435.51 = 7,390.80/x
  3. Step 3: Cross multiply
    13,359.33x = 18,435.51 × 7,390.80
  4. Step 4: Simplify right side
    13,359.33x = 136,253,167.31
  5. Step 5: Solve for x
    x = 136,253,167.31/13,359.33
  6. Step 6: Final answer
    x = 10,199.10

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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.