Home / 18,176.32-25,068.30-12,816.60

Finding the Fourth Proportional to 18,176.32, 25,068.30 and 12,816.60

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Solution

The fourth proportional to 18,176.32, 25,068.30 and 12,816.60 is: 17,676.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,176.32 : 25,068.30 = 12,816.60 : x
  2. Step 2: Convert to fraction form
    18,176.32/25,068.30 = 12,816.60/x
  3. Step 3: Cross multiply
    18,176.32x = 25,068.30 × 12,816.60
  4. Step 4: Simplify right side
    18,176.32x = 321,290,373.78
  5. Step 5: Solve for x
    x = 321,290,373.78/18,176.32
  6. Step 6: Final answer
    x = 17,676.32

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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.