Home / 10,276.16-15,415.28-2,880.64

Finding the Fourth Proportional to 10,276.16, 15,415.28 and 2,880.64

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Solution

The fourth proportional to 10,276.16, 15,415.28 and 2,880.64 is: 4,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,276.16 : 15,415.28 = 2,880.64 : x
  2. Step 2: Convert to fraction form
    10,276.16/15,415.28 = 2,880.64/x
  3. Step 3: Cross multiply
    10,276.16x = 15,415.28 × 2,880.64
  4. Step 4: Simplify right side
    10,276.16x = 44,405,872.18
  5. Step 5: Solve for x
    x = 44,405,872.18/10,276.16
  6. Step 6: Final answer
    x = 4,321.25

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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.