Home / 15,154.24-20,887.32-11,609.68

Finding the Fourth Proportional to 15,154.24, 20,887.32 and 11,609.68

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Solution

The fourth proportional to 15,154.24, 20,887.32 and 11,609.68 is: 16,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,154.24 : 20,887.32 = 11,609.68 : x
  2. Step 2: Convert to fraction form
    15,154.24/20,887.32 = 11,609.68/x
  3. Step 3: Cross multiply
    15,154.24x = 20,887.32 × 11,609.68
  4. Step 4: Simplify right side
    15,154.24x = 242,495,101.26
  5. Step 5: Solve for x
    x = 242,495,101.26/15,154.24
  6. Step 6: Final answer
    x = 16,001.80

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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.