Home / 11,345.75-15,655.16-7,095.45

Finding the Fourth Proportional to 11,345.75, 15,655.16 and 7,095.45

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Solution

The fourth proportional to 11,345.75, 15,655.16 and 7,095.45 is: 9,790.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.75 : 15,655.16 = 7,095.45 : x
  2. Step 2: Convert to fraction form
    11,345.75/15,655.16 = 7,095.45/x
  3. Step 3: Cross multiply
    11,345.75x = 15,655.16 × 7,095.45
  4. Step 4: Simplify right side
    11,345.75x = 111,080,383.43
  5. Step 5: Solve for x
    x = 111,080,383.43/11,345.75
  6. Step 6: Final answer
    x = 9,790.49

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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.