Home / 8,813.07-12,144.47-6,288.06

Finding the Fourth Proportional to 8,813.07, 12,144.47 and 6,288.06

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Solution

The fourth proportional to 8,813.07, 12,144.47 and 6,288.06 is: 8,664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.07 : 12,144.47 = 6,288.06 : x
  2. Step 2: Convert to fraction form
    8,813.07/12,144.47 = 6,288.06/x
  3. Step 3: Cross multiply
    8,813.07x = 12,144.47 × 6,288.06
  4. Step 4: Simplify right side
    8,813.07x = 76,365,170.13
  5. Step 5: Solve for x
    x = 76,365,170.13/8,813.07
  6. Step 6: Final answer
    x = 8,664.99

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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.