Home / 11,520.02-17,275.80-4,122.48

Finding the Fourth Proportional to 11,520.02, 17,275.80 and 4,122.48

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Solution

The fourth proportional to 11,520.02, 17,275.80 and 4,122.48 is: 6,182.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.02 : 17,275.80 = 4,122.48 : x
  2. Step 2: Convert to fraction form
    11,520.02/17,275.80 = 4,122.48/x
  3. Step 3: Cross multiply
    11,520.02x = 17,275.80 × 4,122.48
  4. Step 4: Simplify right side
    11,520.02x = 71,219,139.98
  5. Step 5: Solve for x
    x = 71,219,139.98/11,520.02
  6. Step 6: Final answer
    x = 6,182.21

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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.