Home / 13,762.50-18,983.58-10,974.66

Finding the Fourth Proportional to 13,762.50, 18,983.58 and 10,974.66

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Solution

The fourth proportional to 13,762.50, 18,983.58 and 10,974.66 is: 15,138.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.50 : 18,983.58 = 10,974.66 : x
  2. Step 2: Convert to fraction form
    13,762.50/18,983.58 = 10,974.66/x
  3. Step 3: Cross multiply
    13,762.50x = 18,983.58 × 10,974.66
  4. Step 4: Simplify right side
    13,762.50x = 208,338,336.08
  5. Step 5: Solve for x
    x = 208,338,336.08/13,762.50
  6. Step 6: Final answer
    x = 15,138.12

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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.