Home / 8,417.45-12,630.74-3,490.49

Finding the Fourth Proportional to 8,417.45, 12,630.74 and 3,490.49

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Solution

The fourth proportional to 8,417.45, 12,630.74 and 3,490.49 is: 5,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,417.45 : 12,630.74 = 3,490.49 : x
  2. Step 2: Convert to fraction form
    8,417.45/12,630.74 = 3,490.49/x
  3. Step 3: Cross multiply
    8,417.45x = 12,630.74 × 3,490.49
  4. Step 4: Simplify right side
    8,417.45x = 44,087,485.79
  5. Step 5: Solve for x
    x = 44,087,485.79/8,417.45
  6. Step 6: Final answer
    x = 5,237.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.