Home / 11,256.12-15,530.58-6,778.98

Finding the Fourth Proportional to 11,256.12, 15,530.58 and 6,778.98

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Solution

The fourth proportional to 11,256.12, 15,530.58 and 6,778.98 is: 9,353.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.12 : 15,530.58 = 6,778.98 : x
  2. Step 2: Convert to fraction form
    11,256.12/15,530.58 = 6,778.98/x
  3. Step 3: Cross multiply
    11,256.12x = 15,530.58 × 6,778.98
  4. Step 4: Simplify right side
    11,256.12x = 105,281,491.21
  5. Step 5: Solve for x
    x = 105,281,491.21/11,256.12
  6. Step 6: Final answer
    x = 9,353.27

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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.