Home / 10,880.76-15,013.44-6,630.84

Finding the Fourth Proportional to 10,880.76, 15,013.44 and 6,630.84

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Solution

The fourth proportional to 10,880.76, 15,013.44 and 6,630.84 is: 9,149.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,880.76 : 15,013.44 = 6,630.84 : x
  2. Step 2: Convert to fraction form
    10,880.76/15,013.44 = 6,630.84/x
  3. Step 3: Cross multiply
    10,880.76x = 15,013.44 × 6,630.84
  4. Step 4: Simplify right side
    10,880.76x = 99,551,718.49
  5. Step 5: Solve for x
    x = 99,551,718.49/10,880.76
  6. Step 6: Final answer
    x = 9,149.34

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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.