Home / 11,185.80-15,434.10-6,708.36

Finding the Fourth Proportional to 11,185.80, 15,434.10 and 6,708.36

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Solution

The fourth proportional to 11,185.80, 15,434.10 and 6,708.36 is: 9,256.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.80 : 15,434.10 = 6,708.36 : x
  2. Step 2: Convert to fraction form
    11,185.80/15,434.10 = 6,708.36/x
  3. Step 3: Cross multiply
    11,185.80x = 15,434.10 × 6,708.36
  4. Step 4: Simplify right side
    11,185.80x = 103,537,499.08
  5. Step 5: Solve for x
    x = 103,537,499.08/11,185.80
  6. Step 6: Final answer
    x = 9,256.16

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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.