Home / 18,670.28-25,764.90-10,172.38

Finding the Fourth Proportional to 18,670.28, 25,764.90 and 10,172.38

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Solution

The fourth proportional to 18,670.28, 25,764.90 and 10,172.38 is: 14,037.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.28 : 25,764.90 = 10,172.38 : x
  2. Step 2: Convert to fraction form
    18,670.28/25,764.90 = 10,172.38/x
  3. Step 3: Cross multiply
    18,670.28x = 25,764.90 × 10,172.38
  4. Step 4: Simplify right side
    18,670.28x = 262,090,353.46
  5. Step 5: Solve for x
    x = 262,090,353.46/18,670.28
  6. Step 6: Final answer
    x = 14,037.84

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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.