Home / 12,271.04-16,939.14-9,287.72

Finding the Fourth Proportional to 12,271.04, 16,939.14 and 9,287.72

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Solution

The fourth proportional to 12,271.04, 16,939.14 and 9,287.72 is: 12,820.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.04 : 16,939.14 = 9,287.72 : x
  2. Step 2: Convert to fraction form
    12,271.04/16,939.14 = 9,287.72/x
  3. Step 3: Cross multiply
    12,271.04x = 16,939.14 × 9,287.72
  4. Step 4: Simplify right side
    12,271.04x = 157,325,989.36
  5. Step 5: Solve for x
    x = 157,325,989.36/12,271.04
  6. Step 6: Final answer
    x = 12,820.92

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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.