Home / 12,135.60-16,752.29-8,159.02

Finding the Fourth Proportional to 12,135.60, 16,752.29 and 8,159.02

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Solution

The fourth proportional to 12,135.60, 16,752.29 and 8,159.02 is: 11,262.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.60 : 16,752.29 = 8,159.02 : x
  2. Step 2: Convert to fraction form
    12,135.60/16,752.29 = 8,159.02/x
  3. Step 3: Cross multiply
    12,135.60x = 16,752.29 × 8,159.02
  4. Step 4: Simplify right side
    12,135.60x = 136,682,247.67
  5. Step 5: Solve for x
    x = 136,682,247.67/12,135.60
  6. Step 6: Final answer
    x = 11,262.92

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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.