Home / 8,678.48-11,975.45-5,141.01

Finding the Fourth Proportional to 8,678.48, 11,975.45 and 5,141.01

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Solution

The fourth proportional to 8,678.48, 11,975.45 and 5,141.01 is: 7,094.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.48 : 11,975.45 = 5,141.01 : x
  2. Step 2: Convert to fraction form
    8,678.48/11,975.45 = 5,141.01/x
  3. Step 3: Cross multiply
    8,678.48x = 11,975.45 × 5,141.01
  4. Step 4: Simplify right side
    8,678.48x = 61,565,882.50
  5. Step 5: Solve for x
    x = 61,565,882.50/8,678.48
  6. Step 6: Final answer
    x = 7,094.09

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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.