Home / 8,640.23-11,929.33-6,524.31

Finding the Fourth Proportional to 8,640.23, 11,929.33 and 6,524.31

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Solution

The fourth proportional to 8,640.23, 11,929.33 and 6,524.31 is: 9,007.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640.23 : 11,929.33 = 6,524.31 : x
  2. Step 2: Convert to fraction form
    8,640.23/11,929.33 = 6,524.31/x
  3. Step 3: Cross multiply
    8,640.23x = 11,929.33 × 6,524.31
  4. Step 4: Simplify right side
    8,640.23x = 77,830,647.01
  5. Step 5: Solve for x
    x = 77,830,647.01/8,640.23
  6. Step 6: Final answer
    x = 9,007.94

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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.