Home / 8,415.49-12,625.86-3,487.45

Finding the Fourth Proportional to 8,415.49, 12,625.86 and 3,487.45

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Solution

The fourth proportional to 8,415.49, 12,625.86 and 3,487.45 is: 5,232.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.49 : 12,625.86 = 3,487.45 : x
  2. Step 2: Convert to fraction form
    8,415.49/12,625.86 = 3,487.45/x
  3. Step 3: Cross multiply
    8,415.49x = 12,625.86 × 3,487.45
  4. Step 4: Simplify right side
    8,415.49x = 44,032,055.46
  5. Step 5: Solve for x
    x = 44,032,055.46/8,415.49
  6. Step 6: Final answer
    x = 5,232.26

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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.