Home / 12,570.24-18,862.08-8,400

Finding the Fourth Proportional to 12,570.24, 18,862.08 and 8,400

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Solution

The fourth proportional to 12,570.24, 18,862.08 and 8,400 is: 12,604.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.24 : 18,862.08 = 8,400 : x
  2. Step 2: Convert to fraction form
    12,570.24/18,862.08 = 8,400/x
  3. Step 3: Cross multiply
    12,570.24x = 18,862.08 × 8,400
  4. Step 4: Simplify right side
    12,570.24x = 158,441,472
  5. Step 5: Solve for x
    x = 158,441,472/12,570.24
  6. Step 6: Final answer
    x = 12,604.49

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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.