Home / 12,313.29-16,994.30-7,009.81

Finding the Fourth Proportional to 12,313.29, 16,994.30 and 7,009.81

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Solution

The fourth proportional to 12,313.29, 16,994.30 and 7,009.81 is: 9,674.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,313.29 : 16,994.30 = 7,009.81 : x
  2. Step 2: Convert to fraction form
    12,313.29/16,994.30 = 7,009.81/x
  3. Step 3: Cross multiply
    12,313.29x = 16,994.30 × 7,009.81
  4. Step 4: Simplify right side
    12,313.29x = 119,126,814.08
  5. Step 5: Solve for x
    x = 119,126,814.08/12,313.29
  6. Step 6: Final answer
    x = 9,674.65

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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.