Home / 15,323.48-21,148.54-8,609.63

Finding the Fourth Proportional to 15,323.48, 21,148.54 and 8,609.63

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Solution

The fourth proportional to 15,323.48, 21,148.54 and 8,609.63 is: 11,882.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.48 : 21,148.54 = 8,609.63 : x
  2. Step 2: Convert to fraction form
    15,323.48/21,148.54 = 8,609.63/x
  3. Step 3: Cross multiply
    15,323.48x = 21,148.54 × 8,609.63
  4. Step 4: Simplify right side
    15,323.48x = 182,081,056.48
  5. Step 5: Solve for x
    x = 182,081,056.48/15,323.48
  6. Step 6: Final answer
    x = 11,882.49

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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.