Home / 12,433.64-17,140.85-8,890.70

Finding the Fourth Proportional to 12,433.64, 17,140.85 and 8,890.70

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Solution

The fourth proportional to 12,433.64, 17,140.85 and 8,890.70 is: 12,256.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,433.64 : 17,140.85 = 8,890.70 : x
  2. Step 2: Convert to fraction form
    12,433.64/17,140.85 = 8,890.70/x
  3. Step 3: Cross multiply
    12,433.64x = 17,140.85 × 8,890.70
  4. Step 4: Simplify right side
    12,433.64x = 152,394,058.28
  5. Step 5: Solve for x
    x = 152,394,058.28/12,433.64
  6. Step 6: Final answer
    x = 12,256.60

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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.