Home / 13,299.98-18,353.28-7,330.53

Finding the Fourth Proportional to 13,299.98, 18,353.28 and 7,330.53

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Solution

The fourth proportional to 13,299.98, 18,353.28 and 7,330.53 is: 10,115.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.98 : 18,353.28 = 7,330.53 : x
  2. Step 2: Convert to fraction form
    13,299.98/18,353.28 = 7,330.53/x
  3. Step 3: Cross multiply
    13,299.98x = 18,353.28 × 7,330.53
  4. Step 4: Simplify right side
    13,299.98x = 134,539,269.64
  5. Step 5: Solve for x
    x = 134,539,269.64/13,299.98
  6. Step 6: Final answer
    x = 10,115.75

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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.