Home / 13,199.36-18,199.68-10,538.24

Finding the Fourth Proportional to 13,199.36, 18,199.68 and 10,538.24

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Solution

The fourth proportional to 13,199.36, 18,199.68 and 10,538.24 is: 14,530.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.36 : 18,199.68 = 10,538.24 : x
  2. Step 2: Convert to fraction form
    13,199.36/18,199.68 = 10,538.24/x
  3. Step 3: Cross multiply
    13,199.36x = 18,199.68 × 10,538.24
  4. Step 4: Simplify right side
    13,199.36x = 191,792,595.76
  5. Step 5: Solve for x
    x = 191,792,595.76/13,199.36
  6. Step 6: Final answer
    x = 14,530.45

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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.