Home / 8,148.89-11,245.63-5,318.08

Finding the Fourth Proportional to 8,148.89, 11,245.63 and 5,318.08

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Solution

The fourth proportional to 8,148.89, 11,245.63 and 5,318.08 is: 7,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,148.89 : 11,245.63 = 5,318.08 : x
  2. Step 2: Convert to fraction form
    8,148.89/11,245.63 = 5,318.08/x
  3. Step 3: Cross multiply
    8,148.89x = 11,245.63 × 5,318.08
  4. Step 4: Simplify right side
    8,148.89x = 59,805,103.76
  5. Step 5: Solve for x
    x = 59,805,103.76/8,148.89
  6. Step 6: Final answer
    x = 7,339.05

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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.