Home / 15,720.49-23,596.20-11,548.78

Finding the Fourth Proportional to 15,720.49, 23,596.20 and 11,548.78

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Solution

The fourth proportional to 15,720.49, 23,596.20 and 11,548.78 is: 17,334.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,720.49 : 23,596.20 = 11,548.78 : x
  2. Step 2: Convert to fraction form
    15,720.49/23,596.20 = 11,548.78/x
  3. Step 3: Cross multiply
    15,720.49x = 23,596.20 × 11,548.78
  4. Step 4: Simplify right side
    15,720.49x = 272,507,322.64
  5. Step 5: Solve for x
    x = 272,507,322.64/15,720.49
  6. Step 6: Final answer
    x = 17,334.53

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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.