Home / 10,863.20-14,983.08-6,880.16

Finding the Fourth Proportional to 10,863.20, 14,983.08 and 6,880.16

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Solution

The fourth proportional to 10,863.20, 14,983.08 and 6,880.16 is: 9,489.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.20 : 14,983.08 = 6,880.16 : x
  2. Step 2: Convert to fraction form
    10,863.20/14,983.08 = 6,880.16/x
  3. Step 3: Cross multiply
    10,863.20x = 14,983.08 × 6,880.16
  4. Step 4: Simplify right side
    10,863.20x = 103,085,987.69
  5. Step 5: Solve for x
    x = 103,085,987.69/10,863.20
  6. Step 6: Final answer
    x = 9,489.47

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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.