Home / 8,880.76-13,313.58-5,420.44

Finding the Fourth Proportional to 8,880.76, 13,313.58 and 5,420.44

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Solution

The fourth proportional to 8,880.76, 13,313.58 and 5,420.44 is: 8,126.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.76 : 13,313.58 = 5,420.44 : x
  2. Step 2: Convert to fraction form
    8,880.76/13,313.58 = 5,420.44/x
  3. Step 3: Cross multiply
    8,880.76x = 13,313.58 × 5,420.44
  4. Step 4: Simplify right side
    8,880.76x = 72,165,461.58
  5. Step 5: Solve for x
    x = 72,165,461.58/8,880.76
  6. Step 6: Final answer
    x = 8,126.05

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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.