Home / 11,680.36-16,113.06-7,485.48

Finding the Fourth Proportional to 11,680.36, 16,113.06 and 7,485.48

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Solution

The fourth proportional to 11,680.36, 16,113.06 and 7,485.48 is: 10,326.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,680.36 : 16,113.06 = 7,485.48 : x
  2. Step 2: Convert to fraction form
    11,680.36/16,113.06 = 7,485.48/x
  3. Step 3: Cross multiply
    11,680.36x = 16,113.06 × 7,485.48
  4. Step 4: Simplify right side
    11,680.36x = 120,613,988.37
  5. Step 5: Solve for x
    x = 120,613,988.37/11,680.36
  6. Step 6: Final answer
    x = 10,326.22

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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.