Home / 13,583.80-18,717.54-10,920.52

Finding the Fourth Proportional to 13,583.80, 18,717.54 and 10,920.52

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Solution

The fourth proportional to 13,583.80, 18,717.54 and 10,920.52 is: 15,047.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.80 : 18,717.54 = 10,920.52 : x
  2. Step 2: Convert to fraction form
    13,583.80/18,717.54 = 10,920.52/x
  3. Step 3: Cross multiply
    13,583.80x = 18,717.54 × 10,920.52
  4. Step 4: Simplify right side
    13,583.80x = 204,405,269.92
  5. Step 5: Solve for x
    x = 204,405,269.92/13,583.80
  6. Step 6: Final answer
    x = 15,047.72

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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.