Home / 15,468.55-21,336.68-10,680.39

Finding the Fourth Proportional to 15,468.55, 21,336.68 and 10,680.39

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Solution

The fourth proportional to 15,468.55, 21,336.68 and 10,680.39 is: 14,732.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,468.55 : 21,336.68 = 10,680.39 : x
  2. Step 2: Convert to fraction form
    15,468.55/21,336.68 = 10,680.39/x
  3. Step 3: Cross multiply
    15,468.55x = 21,336.68 × 10,680.39
  4. Step 4: Simplify right side
    15,468.55x = 227,884,090.41
  5. Step 5: Solve for x
    x = 227,884,090.41/15,468.55
  6. Step 6: Final answer
    x = 14,732.09

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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.