Home / 13,299.05-18,352.78-7,330.77

Finding the Fourth Proportional to 13,299.05, 18,352.78 and 7,330.77

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Solution

The fourth proportional to 13,299.05, 18,352.78 and 7,330.77 is: 10,116.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.05 : 18,352.78 = 7,330.77 : x
  2. Step 2: Convert to fraction form
    13,299.05/18,352.78 = 7,330.77/x
  3. Step 3: Cross multiply
    13,299.05x = 18,352.78 × 7,330.77
  4. Step 4: Simplify right side
    13,299.05x = 134,539,990.71
  5. Step 5: Solve for x
    x = 134,539,990.71/13,299.05
  6. Step 6: Final answer
    x = 10,116.51

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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.