Home / 13,862.40-20,752.80-8,652.48

Finding the Fourth Proportional to 13,862.40, 20,752.80 and 8,652.48

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Solution

The fourth proportional to 13,862.40, 20,752.80 and 8,652.48 is: 12,953.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.40 : 20,752.80 = 8,652.48 : x
  2. Step 2: Convert to fraction form
    13,862.40/20,752.80 = 8,652.48/x
  3. Step 3: Cross multiply
    13,862.40x = 20,752.80 × 8,652.48
  4. Step 4: Simplify right side
    13,862.40x = 179,563,186.94
  5. Step 5: Solve for x
    x = 179,563,186.94/13,862.40
  6. Step 6: Final answer
    x = 12,953.25

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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.