Home / 10,480.34-15,720.09-3,554.84

Finding the Fourth Proportional to 10,480.34, 15,720.09 and 3,554.84

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Solution

The fourth proportional to 10,480.34, 15,720.09 and 3,554.84 is: 5,332.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.34 : 15,720.09 = 3,554.84 : x
  2. Step 2: Convert to fraction form
    10,480.34/15,720.09 = 3,554.84/x
  3. Step 3: Cross multiply
    10,480.34x = 15,720.09 × 3,554.84
  4. Step 4: Simplify right side
    10,480.34x = 55,882,326.14
  5. Step 5: Solve for x
    x = 55,882,326.14/10,480.34
  6. Step 6: Final answer
    x = 5,332.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.