Home / 14,051.28-19,390.76-7,763.60

Finding the Fourth Proportional to 14,051.28, 19,390.76 and 7,763.60

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Solution

The fourth proportional to 14,051.28, 19,390.76 and 7,763.60 is: 10,713.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,051.28 : 19,390.76 = 7,763.60 : x
  2. Step 2: Convert to fraction form
    14,051.28/19,390.76 = 7,763.60/x
  3. Step 3: Cross multiply
    14,051.28x = 19,390.76 × 7,763.60
  4. Step 4: Simplify right side
    14,051.28x = 150,542,104.34
  5. Step 5: Solve for x
    x = 150,542,104.34/14,051.28
  6. Step 6: Final answer
    x = 10,713.76

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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.