Home / 12,111.10-18,169.35-4,714.90

Finding the Fourth Proportional to 12,111.10, 18,169.35 and 4,714.90

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Solution

The fourth proportional to 12,111.10, 18,169.35 and 4,714.90 is: 7,073.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111.10 : 18,169.35 = 4,714.90 : x
  2. Step 2: Convert to fraction form
    12,111.10/18,169.35 = 4,714.90/x
  3. Step 3: Cross multiply
    12,111.10x = 18,169.35 × 4,714.90
  4. Step 4: Simplify right side
    12,111.10x = 85,666,668.32
  5. Step 5: Solve for x
    x = 85,666,668.32/12,111.10
  6. Step 6: Final answer
    x = 7,073.40

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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.