Home / 13,335.16-18,405.21-7,673.89

Finding the Fourth Proportional to 13,335.16, 18,405.21 and 7,673.89

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Solution

The fourth proportional to 13,335.16, 18,405.21 and 7,673.89 is: 10,591.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.16 : 18,405.21 = 7,673.89 : x
  2. Step 2: Convert to fraction form
    13,335.16/18,405.21 = 7,673.89/x
  3. Step 3: Cross multiply
    13,335.16x = 18,405.21 × 7,673.89
  4. Step 4: Simplify right side
    13,335.16x = 141,239,556.97
  5. Step 5: Solve for x
    x = 141,239,556.97/13,335.16
  6. Step 6: Final answer
    x = 10,591.52

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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.