Home / 7,512.81-11,256.91-4,880.21

Finding the Fourth Proportional to 7,512.81, 11,256.91 and 4,880.21

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Solution

The fourth proportional to 7,512.81, 11,256.91 and 4,880.21 is: 7,312.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,512.81 : 11,256.91 = 4,880.21 : x
  2. Step 2: Convert to fraction form
    7,512.81/11,256.91 = 4,880.21/x
  3. Step 3: Cross multiply
    7,512.81x = 11,256.91 × 4,880.21
  4. Step 4: Simplify right side
    7,512.81x = 54,936,016.27
  5. Step 5: Solve for x
    x = 54,936,016.27/7,512.81
  6. Step 6: Final answer
    x = 7,312.32

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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.