Home / 13,195.99-18,210.11-7,530.64

Finding the Fourth Proportional to 13,195.99, 18,210.11 and 7,530.64

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Solution

The fourth proportional to 13,195.99, 18,210.11 and 7,530.64 is: 10,392.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.99 : 18,210.11 = 7,530.64 : x
  2. Step 2: Convert to fraction form
    13,195.99/18,210.11 = 7,530.64/x
  3. Step 3: Cross multiply
    13,195.99x = 18,210.11 × 7,530.64
  4. Step 4: Simplify right side
    13,195.99x = 137,133,782.77
  5. Step 5: Solve for x
    x = 137,133,782.77/13,195.99
  6. Step 6: Final answer
    x = 10,392.08

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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.