Home / 8,747.12-13,128.26-4,590.06

Finding the Fourth Proportional to 8,747.12, 13,128.26 and 4,590.06

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Solution

The fourth proportional to 8,747.12, 13,128.26 and 4,590.06 is: 6,889.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.12 : 13,128.26 = 4,590.06 : x
  2. Step 2: Convert to fraction form
    8,747.12/13,128.26 = 4,590.06/x
  3. Step 3: Cross multiply
    8,747.12x = 13,128.26 × 4,590.06
  4. Step 4: Simplify right side
    8,747.12x = 60,259,501.10
  5. Step 5: Solve for x
    x = 60,259,501.10/8,747.12
  6. Step 6: Final answer
    x = 6,889.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.