Home / 14,728.24-20,323.56-8,439.76

Finding the Fourth Proportional to 14,728.24, 20,323.56 and 8,439.76

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Solution

The fourth proportional to 14,728.24, 20,323.56 and 8,439.76 is: 11,646.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,728.24 : 20,323.56 = 8,439.76 : x
  2. Step 2: Convert to fraction form
    14,728.24/20,323.56 = 8,439.76/x
  3. Step 3: Cross multiply
    14,728.24x = 20,323.56 × 8,439.76
  4. Step 4: Simplify right side
    14,728.24x = 171,525,968.75
  5. Step 5: Solve for x
    x = 171,525,968.75/14,728.24
  6. Step 6: Final answer
    x = 11,646.06

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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.