Home / 11,555.79-17,335.31-3,762.78

Finding the Fourth Proportional to 11,555.79, 17,335.31 and 3,762.78

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Solution

The fourth proportional to 11,555.79, 17,335.31 and 3,762.78 is: 5,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,555.79 : 17,335.31 = 3,762.78 : x
  2. Step 2: Convert to fraction form
    11,555.79/17,335.31 = 3,762.78/x
  3. Step 3: Cross multiply
    11,555.79x = 17,335.31 × 3,762.78
  4. Step 4: Simplify right side
    11,555.79x = 65,228,957.76
  5. Step 5: Solve for x
    x = 65,228,957.76/11,555.79
  6. Step 6: Final answer
    x = 5,644.70

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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.