Home / 13,328.29-18,392.83-7,359.81

Finding the Fourth Proportional to 13,328.29, 18,392.83 and 7,359.81

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Solution

The fourth proportional to 13,328.29, 18,392.83 and 7,359.81 is: 10,156.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.29 : 18,392.83 = 7,359.81 : x
  2. Step 2: Convert to fraction form
    13,328.29/18,392.83 = 7,359.81/x
  3. Step 3: Cross multiply
    13,328.29x = 18,392.83 × 7,359.81
  4. Step 4: Simplify right side
    13,328.29x = 135,367,734.16
  5. Step 5: Solve for x
    x = 135,367,734.16/13,328.29
  6. Step 6: Final answer
    x = 10,156.42

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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.