Home / 13,130.14-18,123.34-7,467.94

Finding the Fourth Proportional to 13,130.14, 18,123.34 and 7,467.94

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Solution

The fourth proportional to 13,130.14, 18,123.34 and 7,467.94 is: 10,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.14 : 18,123.34 = 7,467.94 : x
  2. Step 2: Convert to fraction form
    13,130.14/18,123.34 = 7,467.94/x
  3. Step 3: Cross multiply
    13,130.14x = 18,123.34 × 7,467.94
  4. Step 4: Simplify right side
    13,130.14x = 135,344,015.72
  5. Step 5: Solve for x
    x = 135,344,015.72/13,130.14
  6. Step 6: Final answer
    x = 10,307.89

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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.