Home / 7,013.78-9,679.01-4,029.89

Finding the Fourth Proportional to 7,013.78, 9,679.01 and 4,029.89

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Solution

The fourth proportional to 7,013.78, 9,679.01 and 4,029.89 is: 5,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.78 : 9,679.01 = 4,029.89 : x
  2. Step 2: Convert to fraction form
    7,013.78/9,679.01 = 4,029.89/x
  3. Step 3: Cross multiply
    7,013.78x = 9,679.01 × 4,029.89
  4. Step 4: Simplify right side
    7,013.78x = 39,005,349.07
  5. Step 5: Solve for x
    x = 39,005,349.07/7,013.78
  6. Step 6: Final answer
    x = 5,561.25

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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.