Home / 15,741.72-21,724.86-9,453.96

Finding the Fourth Proportional to 15,741.72, 21,724.86 and 9,453.96

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Solution

The fourth proportional to 15,741.72, 21,724.86 and 9,453.96 is: 13,047.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.72 : 21,724.86 = 9,453.96 : x
  2. Step 2: Convert to fraction form
    15,741.72/21,724.86 = 9,453.96/x
  3. Step 3: Cross multiply
    15,741.72x = 21,724.86 × 9,453.96
  4. Step 4: Simplify right side
    15,741.72x = 205,385,957.45
  5. Step 5: Solve for x
    x = 205,385,957.45/15,741.72
  6. Step 6: Final answer
    x = 13,047.24

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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.