Home / 12,590,507.10-18,885,760.65-11,540,747.10

Finding the Fourth Proportional to 12,590,507.10, 18,885,760.65 and 11,540,747.10

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Solution

The fourth proportional to 12,590,507.10, 18,885,760.65 and 11,540,747.10 is: 17,311,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590,507.10 : 18,885,760.65 = 11,540,747.10 : x
  2. Step 2: Convert to fraction form
    12,590,507.10/18,885,760.65 = 11,540,747.10/x
  3. Step 3: Cross multiply
    12,590,507.10x = 18,885,760.65 × 11,540,747.10
  4. Step 4: Simplify right side
    12,590,507.10x = 217,955,787,452,781.59
  5. Step 5: Solve for x
    x = 217,955,787,452,781.59/12,590,507.10
  6. Step 6: Final answer
    x = 17,311,120.65

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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.