Home / 12,313.46-16,990.60-7,008.38

Finding the Fourth Proportional to 12,313.46, 16,990.60 and 7,008.38

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Solution

The fourth proportional to 12,313.46, 16,990.60 and 7,008.38 is: 9,670.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.46 : 16,990.60 = 7,008.38 : x
  2. Step 2: Convert to fraction form
    12,313.46/16,990.60 = 7,008.38/x
  3. Step 3: Cross multiply
    12,313.46x = 16,990.60 × 7,008.38
  4. Step 4: Simplify right side
    12,313.46x = 119,076,581.23
  5. Step 5: Solve for x
    x = 119,076,581.23/12,313.46
  6. Step 6: Final answer
    x = 9,670.44

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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.