Home / 10,515.78-14,513.45-6,324.03

Finding the Fourth Proportional to 10,515.78, 14,513.45 and 6,324.03

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Solution

The fourth proportional to 10,515.78, 14,513.45 and 6,324.03 is: 8,728.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.78 : 14,513.45 = 6,324.03 : x
  2. Step 2: Convert to fraction form
    10,515.78/14,513.45 = 6,324.03/x
  3. Step 3: Cross multiply
    10,515.78x = 14,513.45 × 6,324.03
  4. Step 4: Simplify right side
    10,515.78x = 91,783,493.20
  5. Step 5: Solve for x
    x = 91,783,493.20/10,515.78
  6. Step 6: Final answer
    x = 8,728.17

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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.