Home / 14,942.47-20,613.68-9,639.00

Finding the Fourth Proportional to 14,942.47, 20,613.68 and 9,639.00

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Solution

The fourth proportional to 14,942.47, 20,613.68 and 9,639.00 is: 13,297.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.47 : 20,613.68 = 9,639.00 : x
  2. Step 2: Convert to fraction form
    14,942.47/20,613.68 = 9,639.00/x
  3. Step 3: Cross multiply
    14,942.47x = 20,613.68 × 9,639.00
  4. Step 4: Simplify right side
    14,942.47x = 198,695,226.39
  5. Step 5: Solve for x
    x = 198,695,226.39/14,942.47
  6. Step 6: Final answer
    x = 13,297.35

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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.