Home / 15,635.36-21,576.83-8,465.35

Finding the Fourth Proportional to 15,635.36, 21,576.83 and 8,465.35

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Solution

The fourth proportional to 15,635.36, 21,576.83 and 8,465.35 is: 11,682.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,635.36 : 21,576.83 = 8,465.35 : x
  2. Step 2: Convert to fraction form
    15,635.36/21,576.83 = 8,465.35/x
  3. Step 3: Cross multiply
    15,635.36x = 21,576.83 × 8,465.35
  4. Step 4: Simplify right side
    15,635.36x = 182,655,417.84
  5. Step 5: Solve for x
    x = 182,655,417.84/15,635.36
  6. Step 6: Final answer
    x = 11,682.20

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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.