Home / 12,314.15-16,989.31-7,007.64

Finding the Fourth Proportional to 12,314.15, 16,989.31 and 7,007.64

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Solution

The fourth proportional to 12,314.15, 16,989.31 and 7,007.64 is: 9,668.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,314.15 : 16,989.31 = 7,007.64 : x
  2. Step 2: Convert to fraction form
    12,314.15/16,989.31 = 7,007.64/x
  3. Step 3: Cross multiply
    12,314.15x = 16,989.31 × 7,007.64
  4. Step 4: Simplify right side
    12,314.15x = 119,054,968.33
  5. Step 5: Solve for x
    x = 119,054,968.33/12,314.15
  6. Step 6: Final answer
    x = 9,668.14

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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.