Home / 11,493.47-15,860-6,457.29

Finding the Fourth Proportional to 11,493.47, 15,860 and 6,457.29

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Solution

The fourth proportional to 11,493.47, 15,860 and 6,457.29 is: 8,910.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,493.47 : 15,860 = 6,457.29 : x
  2. Step 2: Convert to fraction form
    11,493.47/15,860 = 6,457.29/x
  3. Step 3: Cross multiply
    11,493.47x = 15,860 × 6,457.29
  4. Step 4: Simplify right side
    11,493.47x = 102,412,619.40
  5. Step 5: Solve for x
    x = 102,412,619.40/11,493.47
  6. Step 6: Final answer
    x = 8,910.51

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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.