Home / 12,435.78-17,154.57-8,652.96

Finding the Fourth Proportional to 12,435.78, 17,154.57 and 8,652.96

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Solution

The fourth proportional to 12,435.78, 17,154.57 and 8,652.96 is: 11,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.78 : 17,154.57 = 8,652.96 : x
  2. Step 2: Convert to fraction form
    12,435.78/17,154.57 = 8,652.96/x
  3. Step 3: Cross multiply
    12,435.78x = 17,154.57 × 8,652.96
  4. Step 4: Simplify right side
    12,435.78x = 148,437,808.03
  5. Step 5: Solve for x
    x = 148,437,808.03/12,435.78
  6. Step 6: Final answer
    x = 11,936.35

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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.