Home / 13,082.76-18,054.35-7,114.42

Finding the Fourth Proportional to 13,082.76, 18,054.35 and 7,114.42

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Solution

The fourth proportional to 13,082.76, 18,054.35 and 7,114.42 is: 9,817.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.76 : 18,054.35 = 7,114.42 : x
  2. Step 2: Convert to fraction form
    13,082.76/18,054.35 = 7,114.42/x
  3. Step 3: Cross multiply
    13,082.76x = 18,054.35 × 7,114.42
  4. Step 4: Simplify right side
    13,082.76x = 128,446,283.68
  5. Step 5: Solve for x
    x = 128,446,283.68/13,082.76
  6. Step 6: Final answer
    x = 9,817.98

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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.