Home / 8,518.64-12,776.88-6,330.56

Finding the Fourth Proportional to 8,518.64, 12,776.88 and 6,330.56

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Solution

The fourth proportional to 8,518.64, 12,776.88 and 6,330.56 is: 9,495.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,518.64 : 12,776.88 = 6,330.56 : x
  2. Step 2: Convert to fraction form
    8,518.64/12,776.88 = 6,330.56/x
  3. Step 3: Cross multiply
    8,518.64x = 12,776.88 × 6,330.56
  4. Step 4: Simplify right side
    8,518.64x = 80,884,805.45
  5. Step 5: Solve for x
    x = 80,884,805.45/8,518.64
  6. Step 6: Final answer
    x = 9,495.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.