Home / 13,835.15-20,752.74-12,454.28

Finding the Fourth Proportional to 13,835.15, 20,752.74 and 12,454.28

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Solution

The fourth proportional to 13,835.15, 20,752.74 and 12,454.28 is: 18,681.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.15 : 20,752.74 = 12,454.28 : x
  2. Step 2: Convert to fraction form
    13,835.15/20,752.74 = 12,454.28/x
  3. Step 3: Cross multiply
    13,835.15x = 20,752.74 × 12,454.28
  4. Step 4: Simplify right side
    13,835.15x = 258,460,486.61
  5. Step 5: Solve for x
    x = 258,460,486.61/13,835.15
  6. Step 6: Final answer
    x = 18,681.43

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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.