Home / 13,816.16-20,732.74-10,988.24

Finding the Fourth Proportional to 13,816.16, 20,732.74 and 10,988.24

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Solution

The fourth proportional to 13,816.16, 20,732.74 and 10,988.24 is: 16,489.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.16 : 20,732.74 = 10,988.24 : x
  2. Step 2: Convert to fraction form
    13,816.16/20,732.74 = 10,988.24/x
  3. Step 3: Cross multiply
    13,816.16x = 20,732.74 × 10,988.24
  4. Step 4: Simplify right side
    13,816.16x = 227,816,322.98
  5. Step 5: Solve for x
    x = 227,816,322.98/13,816.16
  6. Step 6: Final answer
    x = 16,489.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.