Home / 13,631.99-18,811.67-7,582.20

Finding the Fourth Proportional to 13,631.99, 18,811.67 and 7,582.20

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Solution

The fourth proportional to 13,631.99, 18,811.67 and 7,582.20 is: 10,463.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.99 : 18,811.67 = 7,582.20 : x
  2. Step 2: Convert to fraction form
    13,631.99/18,811.67 = 7,582.20/x
  3. Step 3: Cross multiply
    13,631.99x = 18,811.67 × 7,582.20
  4. Step 4: Simplify right side
    13,631.99x = 142,633,806.36
  5. Step 5: Solve for x
    x = 142,633,806.36/13,631.99
  6. Step 6: Final answer
    x = 10,463.17

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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.