Home / 18,808.02-25,966.88-12,105.30

Finding the Fourth Proportional to 18,808.02, 25,966.88 and 12,105.30

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Solution

The fourth proportional to 18,808.02, 25,966.88 and 12,105.30 is: 16,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,808.02 : 25,966.88 = 12,105.30 : x
  2. Step 2: Convert to fraction form
    18,808.02/25,966.88 = 12,105.30/x
  3. Step 3: Cross multiply
    18,808.02x = 25,966.88 × 12,105.30
  4. Step 4: Simplify right side
    18,808.02x = 314,336,808.64
  5. Step 5: Solve for x
    x = 314,336,808.64/18,808.02
  6. Step 6: Final answer
    x = 16,712.91

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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.