Home / 11,317.89-15,618.85-6,282.43

Finding the Fourth Proportional to 11,317.89, 15,618.85 and 6,282.43

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Solution

The fourth proportional to 11,317.89, 15,618.85 and 6,282.43 is: 8,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.89 : 15,618.85 = 6,282.43 : x
  2. Step 2: Convert to fraction form
    11,317.89/15,618.85 = 6,282.43/x
  3. Step 3: Cross multiply
    11,317.89x = 15,618.85 × 6,282.43
  4. Step 4: Simplify right side
    11,317.89x = 98,124,331.81
  5. Step 5: Solve for x
    x = 98,124,331.81/11,317.89
  6. Step 6: Final answer
    x = 8,669.84

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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.