Home / 19,461.54-26,847.12-11,389.89

Finding the Fourth Proportional to 19,461.54, 26,847.12 and 11,389.89

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Solution

The fourth proportional to 19,461.54, 26,847.12 and 11,389.89 is: 15,712.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,461.54 : 26,847.12 = 11,389.89 : x
  2. Step 2: Convert to fraction form
    19,461.54/26,847.12 = 11,389.89/x
  3. Step 3: Cross multiply
    19,461.54x = 26,847.12 × 11,389.89
  4. Step 4: Simplify right side
    19,461.54x = 305,785,743.62
  5. Step 5: Solve for x
    x = 305,785,743.62/19,461.54
  6. Step 6: Final answer
    x = 15,712.31

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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.