Home / 14,741.28-20,342.70-8,453.16

Finding the Fourth Proportional to 14,741.28, 20,342.70 and 8,453.16

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Solution

The fourth proportional to 14,741.28, 20,342.70 and 8,453.16 is: 11,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,741.28 : 20,342.70 = 8,453.16 : x
  2. Step 2: Convert to fraction form
    14,741.28/20,342.70 = 8,453.16/x
  3. Step 3: Cross multiply
    14,741.28x = 20,342.70 × 8,453.16
  4. Step 4: Simplify right side
    14,741.28x = 171,960,097.93
  5. Step 5: Solve for x
    x = 171,960,097.93/14,741.28
  6. Step 6: Final answer
    x = 11,665.21

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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.