Home / 13,274.70-18,319.41-7,305.81

Finding the Fourth Proportional to 13,274.70, 18,319.41 and 7,305.81

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Solution

The fourth proportional to 13,274.70, 18,319.41 and 7,305.81 is: 10,082.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.70 : 18,319.41 = 7,305.81 : x
  2. Step 2: Convert to fraction form
    13,274.70/18,319.41 = 7,305.81/x
  3. Step 3: Cross multiply
    13,274.70x = 18,319.41 × 7,305.81
  4. Step 4: Simplify right side
    13,274.70x = 133,838,128.77
  5. Step 5: Solve for x
    x = 133,838,128.77/13,274.70
  6. Step 6: Final answer
    x = 10,082.20

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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.