Home / 11,291.58-15,582.33-6,511.50

Finding the Fourth Proportional to 11,291.58, 15,582.33 and 6,511.50

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Solution

The fourth proportional to 11,291.58, 15,582.33 and 6,511.50 is: 8,985.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.58 : 15,582.33 = 6,511.50 : x
  2. Step 2: Convert to fraction form
    11,291.58/15,582.33 = 6,511.50/x
  3. Step 3: Cross multiply
    11,291.58x = 15,582.33 × 6,511.50
  4. Step 4: Simplify right side
    11,291.58x = 101,464,341.80
  5. Step 5: Solve for x
    x = 101,464,341.80/11,291.58
  6. Step 6: Final answer
    x = 8,985.84

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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.