Home / 14,125.28-21,190.80-4,764.32

Finding the Fourth Proportional to 14,125.28, 21,190.80 and 4,764.32

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Solution

The fourth proportional to 14,125.28, 21,190.80 and 4,764.32 is: 7,147.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.28 : 21,190.80 = 4,764.32 : x
  2. Step 2: Convert to fraction form
    14,125.28/21,190.80 = 4,764.32/x
  3. Step 3: Cross multiply
    14,125.28x = 21,190.80 × 4,764.32
  4. Step 4: Simplify right side
    14,125.28x = 100,959,752.26
  5. Step 5: Solve for x
    x = 100,959,752.26/14,125.28
  6. Step 6: Final answer
    x = 7,147.45

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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.