Home / 13,274.09-18,318.30-7,609.17

Finding the Fourth Proportional to 13,274.09, 18,318.30 and 7,609.17

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Solution

The fourth proportional to 13,274.09, 18,318.30 and 7,609.17 is: 10,500.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.09 : 18,318.30 = 7,609.17 : x
  2. Step 2: Convert to fraction form
    13,274.09/18,318.30 = 7,609.17/x
  3. Step 3: Cross multiply
    13,274.09x = 18,318.30 × 7,609.17
  4. Step 4: Simplify right side
    13,274.09x = 139,387,058.81
  5. Step 5: Solve for x
    x = 139,387,058.81/13,274.09
  6. Step 6: Final answer
    x = 10,500.69

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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.