Home / 15,991.16-22,055.90-11,740.88

Finding the Fourth Proportional to 15,991.16, 22,055.90 and 11,740.88

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Solution

The fourth proportional to 15,991.16, 22,055.90 and 11,740.88 is: 16,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.16 : 22,055.90 = 11,740.88 : x
  2. Step 2: Convert to fraction form
    15,991.16/22,055.90 = 11,740.88/x
  3. Step 3: Cross multiply
    15,991.16x = 22,055.90 × 11,740.88
  4. Step 4: Simplify right side
    15,991.16x = 258,955,671.63
  5. Step 5: Solve for x
    x = 258,955,671.63/15,991.16
  6. Step 6: Final answer
    x = 16,193.68

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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.