Home / 14,986.47-20,681.04-8,271.70

Finding the Fourth Proportional to 14,986.47, 20,681.04 and 8,271.70

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Solution

The fourth proportional to 14,986.47, 20,681.04 and 8,271.70 is: 11,414.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.47 : 20,681.04 = 8,271.70 : x
  2. Step 2: Convert to fraction form
    14,986.47/20,681.04 = 8,271.70/x
  3. Step 3: Cross multiply
    14,986.47x = 20,681.04 × 8,271.70
  4. Step 4: Simplify right side
    14,986.47x = 171,067,358.57
  5. Step 5: Solve for x
    x = 171,067,358.57/14,986.47
  6. Step 6: Final answer
    x = 11,414.79

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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.