Home / 8,455.86-11,669.33-4,679.51

Finding the Fourth Proportional to 8,455.86, 11,669.33 and 4,679.51

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Solution

The fourth proportional to 8,455.86, 11,669.33 and 4,679.51 is: 6,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.86 : 11,669.33 = 4,679.51 : x
  2. Step 2: Convert to fraction form
    8,455.86/11,669.33 = 4,679.51/x
  3. Step 3: Cross multiply
    8,455.86x = 11,669.33 × 4,679.51
  4. Step 4: Simplify right side
    8,455.86x = 54,606,699.78
  5. Step 5: Solve for x
    x = 54,606,699.78/8,455.86
  6. Step 6: Final answer
    x = 6,457.85

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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.