Home / 11,187.61-15,438.59-6,151.84

Finding the Fourth Proportional to 11,187.61, 15,438.59 and 6,151.84

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Solution

The fourth proportional to 11,187.61, 15,438.59 and 6,151.84 is: 8,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.61 : 15,438.59 = 6,151.84 : x
  2. Step 2: Convert to fraction form
    11,187.61/15,438.59 = 6,151.84/x
  3. Step 3: Cross multiply
    11,187.61x = 15,438.59 × 6,151.84
  4. Step 4: Simplify right side
    11,187.61x = 94,975,735.51
  5. Step 5: Solve for x
    x = 94,975,735.51/11,187.61
  6. Step 6: Final answer
    x = 8,489.37

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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.