Home / 12,313.08-16,991.46-7,007.40

Finding the Fourth Proportional to 12,313.08, 16,991.46 and 7,007.40

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Solution

The fourth proportional to 12,313.08, 16,991.46 and 7,007.40 is: 9,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.08 : 16,991.46 = 7,007.40 : x
  2. Step 2: Convert to fraction form
    12,313.08/16,991.46 = 7,007.40/x
  3. Step 3: Cross multiply
    12,313.08x = 16,991.46 × 7,007.40
  4. Step 4: Simplify right side
    12,313.08x = 119,065,956.80
  5. Step 5: Solve for x
    x = 119,065,956.80/12,313.08
  6. Step 6: Final answer
    x = 9,669.88

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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.