Home / 15,635.39-21,576.58-8,465.25

Finding the Fourth Proportional to 15,635.39, 21,576.58 and 8,465.25

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Solution

The fourth proportional to 15,635.39, 21,576.58 and 8,465.25 is: 11,681.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,635.39 : 21,576.58 = 8,465.25 : x
  2. Step 2: Convert to fraction form
    15,635.39/21,576.58 = 8,465.25/x
  3. Step 3: Cross multiply
    15,635.39x = 21,576.58 × 8,465.25
  4. Step 4: Simplify right side
    15,635.39x = 182,650,993.64
  5. Step 5: Solve for x
    x = 182,650,993.64/15,635.39
  6. Step 6: Final answer
    x = 11,681.90

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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.