Home / 16,980.10-25,419.93-12,616.90

Finding the Fourth Proportional to 16,980.10, 25,419.93 and 12,616.90

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Solution

The fourth proportional to 16,980.10, 25,419.93 and 12,616.90 is: 18,888.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,980.10 : 25,419.93 = 12,616.90 : x
  2. Step 2: Convert to fraction form
    16,980.10/25,419.93 = 12,616.90/x
  3. Step 3: Cross multiply
    16,980.10x = 25,419.93 × 12,616.90
  4. Step 4: Simplify right side
    16,980.10x = 320,720,714.82
  5. Step 5: Solve for x
    x = 320,720,714.82/16,980.10
  6. Step 6: Final answer
    x = 18,888.03

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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.