Home / 13,197.99-18,208.67-7,528.65

Finding the Fourth Proportional to 13,197.99, 18,208.67 and 7,528.65

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Solution

The fourth proportional to 13,197.99, 18,208.67 and 7,528.65 is: 10,386.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.99 : 18,208.67 = 7,528.65 : x
  2. Step 2: Convert to fraction form
    13,197.99/18,208.67 = 7,528.65/x
  3. Step 3: Cross multiply
    13,197.99x = 18,208.67 × 7,528.65
  4. Step 4: Simplify right side
    13,197.99x = 137,086,660.99
  5. Step 5: Solve for x
    x = 137,086,660.99/13,197.99
  6. Step 6: Final answer
    x = 10,386.94

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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.