Home / 15,582.18-21,481.08-9,609.84

Finding the Fourth Proportional to 15,582.18, 21,481.08 and 9,609.84

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Solution

The fourth proportional to 15,582.18, 21,481.08 and 9,609.84 is: 13,247.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,582.18 : 21,481.08 = 9,609.84 : x
  2. Step 2: Convert to fraction form
    15,582.18/21,481.08 = 9,609.84/x
  3. Step 3: Cross multiply
    15,582.18x = 21,481.08 × 9,609.84
  4. Step 4: Simplify right side
    15,582.18x = 206,429,741.83
  5. Step 5: Solve for x
    x = 206,429,741.83/15,582.18
  6. Step 6: Final answer
    x = 13,247.81

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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.