Home / 15,496.48-21,385.68-8,423.44

Finding the Fourth Proportional to 15,496.48, 21,385.68 and 8,423.44

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Solution

The fourth proportional to 15,496.48, 21,385.68 and 8,423.44 is: 11,624.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,496.48 : 21,385.68 = 8,423.44 : x
  2. Step 2: Convert to fraction form
    15,496.48/21,385.68 = 8,423.44/x
  3. Step 3: Cross multiply
    15,496.48x = 21,385.68 × 8,423.44
  4. Step 4: Simplify right side
    15,496.48x = 180,140,992.34
  5. Step 5: Solve for x
    x = 180,140,992.34/15,496.48
  6. Step 6: Final answer
    x = 11,624.64

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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.