Home / 12,728.22-17,565.03-7,423.26

Finding the Fourth Proportional to 12,728.22, 17,565.03 and 7,423.26

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Solution

The fourth proportional to 12,728.22, 17,565.03 and 7,423.26 is: 10,244.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.22 : 17,565.03 = 7,423.26 : x
  2. Step 2: Convert to fraction form
    12,728.22/17,565.03 = 7,423.26/x
  3. Step 3: Cross multiply
    12,728.22x = 17,565.03 × 7,423.26
  4. Step 4: Simplify right side
    12,728.22x = 130,389,784.60
  5. Step 5: Solve for x
    x = 130,389,784.60/12,728.22
  6. Step 6: Final answer
    x = 10,244.15

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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.