Home / 15,414.23-21,240.25-10,635.64

Finding the Fourth Proportional to 15,414.23, 21,240.25 and 10,635.64

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Solution

The fourth proportional to 15,414.23, 21,240.25 and 10,635.64 is: 14,655.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.23 : 21,240.25 = 10,635.64 : x
  2. Step 2: Convert to fraction form
    15,414.23/21,240.25 = 10,635.64/x
  3. Step 3: Cross multiply
    15,414.23x = 21,240.25 × 10,635.64
  4. Step 4: Simplify right side
    15,414.23x = 225,903,572.82
  5. Step 5: Solve for x
    x = 225,903,572.82/15,414.23
  6. Step 6: Final answer
    x = 14,655.52

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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.