Home / 15,435.63-21,293.34-9,760.82

Finding the Fourth Proportional to 15,435.63, 21,293.34 and 9,760.82

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Solution

The fourth proportional to 15,435.63, 21,293.34 and 9,760.82 is: 13,464.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,435.63 : 21,293.34 = 9,760.82 : x
  2. Step 2: Convert to fraction form
    15,435.63/21,293.34 = 9,760.82/x
  3. Step 3: Cross multiply
    15,435.63x = 21,293.34 × 9,760.82
  4. Step 4: Simplify right side
    15,435.63x = 207,840,352.47
  5. Step 5: Solve for x
    x = 207,840,352.47/15,435.63
  6. Step 6: Final answer
    x = 13,464.97

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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.