Home / 13,335.30-18,404.92-10,159.09

Finding the Fourth Proportional to 13,335.30, 18,404.92 and 10,159.09

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Solution

The fourth proportional to 13,335.30, 18,404.92 and 10,159.09 is: 14,021.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.30 : 18,404.92 = 10,159.09 : x
  2. Step 2: Convert to fraction form
    13,335.30/18,404.92 = 10,159.09/x
  3. Step 3: Cross multiply
    13,335.30x = 18,404.92 × 10,159.09
  4. Step 4: Simplify right side
    13,335.30x = 186,977,205.41
  5. Step 5: Solve for x
    x = 186,977,205.41/13,335.30
  6. Step 6: Final answer
    x = 14,021.22

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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.