Home / 8,689.48-11,991.44-4,710.56

Finding the Fourth Proportional to 8,689.48, 11,991.44 and 4,710.56

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Solution

The fourth proportional to 8,689.48, 11,991.44 and 4,710.56 is: 6,500.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.48 : 11,991.44 = 4,710.56 : x
  2. Step 2: Convert to fraction form
    8,689.48/11,991.44 = 4,710.56/x
  3. Step 3: Cross multiply
    8,689.48x = 11,991.44 × 4,710.56
  4. Step 4: Simplify right side
    8,689.48x = 56,486,349.43
  5. Step 5: Solve for x
    x = 56,486,349.43/8,689.48
  6. Step 6: Final answer
    x = 6,500.55

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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.