Home / 13,507.08-20,275.20-11,339.52

Finding the Fourth Proportional to 13,507.08, 20,275.20 and 11,339.52

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Solution

The fourth proportional to 13,507.08, 20,275.20 and 11,339.52 is: 17,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.08 : 20,275.20 = 11,339.52 : x
  2. Step 2: Convert to fraction form
    13,507.08/20,275.20 = 11,339.52/x
  3. Step 3: Cross multiply
    13,507.08x = 20,275.20 × 11,339.52
  4. Step 4: Simplify right side
    13,507.08x = 229,911,035.90
  5. Step 5: Solve for x
    x = 229,911,035.90/13,507.08
  6. Step 6: Final answer
    x = 17,021.52

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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.