Home / 13,237.65-18,267.99-7,187.91

Finding the Fourth Proportional to 13,237.65, 18,267.99 and 7,187.91

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Solution

The fourth proportional to 13,237.65, 18,267.99 and 7,187.91 is: 9,919.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,237.65 : 18,267.99 = 7,187.91 : x
  2. Step 2: Convert to fraction form
    13,237.65/18,267.99 = 7,187.91/x
  3. Step 3: Cross multiply
    13,237.65x = 18,267.99 × 7,187.91
  4. Step 4: Simplify right side
    13,237.65x = 131,308,668.00
  5. Step 5: Solve for x
    x = 131,308,668.00/13,237.65
  6. Step 6: Final answer
    x = 9,919.33

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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.