Home / 10,880.12-16,312.20-3,480.32

Finding the Fourth Proportional to 10,880.12, 16,312.20 and 3,480.32

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Solution

The fourth proportional to 10,880.12, 16,312.20 and 3,480.32 is: 5,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,880.12 : 16,312.20 = 3,480.32 : x
  2. Step 2: Convert to fraction form
    10,880.12/16,312.20 = 3,480.32/x
  3. Step 3: Cross multiply
    10,880.12x = 16,312.20 × 3,480.32
  4. Step 4: Simplify right side
    10,880.12x = 56,771,675.90
  5. Step 5: Solve for x
    x = 56,771,675.90/10,880.12
  6. Step 6: Final answer
    x = 5,217.93

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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.