Home / 11,357.48-15,672.58-6,388.52

Finding the Fourth Proportional to 11,357.48, 15,672.58 and 6,388.52

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Solution

The fourth proportional to 11,357.48, 15,672.58 and 6,388.52 is: 8,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,357.48 : 15,672.58 = 6,388.52 : x
  2. Step 2: Convert to fraction form
    11,357.48/15,672.58 = 6,388.52/x
  3. Step 3: Cross multiply
    11,357.48x = 15,672.58 × 6,388.52
  4. Step 4: Simplify right side
    11,357.48x = 100,124,590.78
  5. Step 5: Solve for x
    x = 100,124,590.78/11,357.48
  6. Step 6: Final answer
    x = 8,815.74

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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.