Home / 18,977.10-26,183.52-12,612.93

Finding the Fourth Proportional to 18,977.10, 26,183.52 and 12,612.93

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Solution

The fourth proportional to 18,977.10, 26,183.52 and 12,612.93 is: 17,402.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.10 : 26,183.52 = 12,612.93 : x
  2. Step 2: Convert to fraction form
    18,977.10/26,183.52 = 12,612.93/x
  3. Step 3: Cross multiply
    18,977.10x = 26,183.52 × 12,612.93
  4. Step 4: Simplify right side
    18,977.10x = 330,250,904.91
  5. Step 5: Solve for x
    x = 330,250,904.91/18,977.10
  6. Step 6: Final answer
    x = 17,402.60

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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.