Home / 13,528.04-20,289.31-11,330.10

Finding the Fourth Proportional to 13,528.04, 20,289.31 and 11,330.10

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Solution

The fourth proportional to 13,528.04, 20,289.31 and 11,330.10 is: 16,992.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,528.04 : 20,289.31 = 11,330.10 : x
  2. Step 2: Convert to fraction form
    13,528.04/20,289.31 = 11,330.10/x
  3. Step 3: Cross multiply
    13,528.04x = 20,289.31 × 11,330.10
  4. Step 4: Simplify right side
    13,528.04x = 229,879,911.23
  5. Step 5: Solve for x
    x = 229,879,911.23/13,528.04
  6. Step 6: Final answer
    x = 16,992.85

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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.