Home / 19,173.12-28,764.54-10,405.68

Finding the Fourth Proportional to 19,173.12, 28,764.54 and 10,405.68

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Solution

The fourth proportional to 19,173.12, 28,764.54 and 10,405.68 is: 15,611.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.12 : 28,764.54 = 10,405.68 : x
  2. Step 2: Convert to fraction form
    19,173.12/28,764.54 = 10,405.68/x
  3. Step 3: Cross multiply
    19,173.12x = 28,764.54 × 10,405.68
  4. Step 4: Simplify right side
    19,173.12x = 299,314,598.59
  5. Step 5: Solve for x
    x = 299,314,598.59/19,173.12
  6. Step 6: Final answer
    x = 15,611.16

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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.