Home / 11,345.42-15,654.36-6,628.79

Finding the Fourth Proportional to 11,345.42, 15,654.36 and 6,628.79

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Solution

The fourth proportional to 11,345.42, 15,654.36 and 6,628.79 is: 9,146.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.42 : 15,654.36 = 6,628.79 : x
  2. Step 2: Convert to fraction form
    11,345.42/15,654.36 = 6,628.79/x
  3. Step 3: Cross multiply
    11,345.42x = 15,654.36 × 6,628.79
  4. Step 4: Simplify right side
    11,345.42x = 103,769,386.75
  5. Step 5: Solve for x
    x = 103,769,386.75/11,345.42
  6. Step 6: Final answer
    x = 9,146.37

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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.