Home / 9,208.18-12,703.50-6,415.30

Finding the Fourth Proportional to 9,208.18, 12,703.50 and 6,415.30

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Solution

The fourth proportional to 9,208.18, 12,703.50 and 6,415.30 is: 8,850.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,208.18 : 12,703.50 = 6,415.30 : x
  2. Step 2: Convert to fraction form
    9,208.18/12,703.50 = 6,415.30/x
  3. Step 3: Cross multiply
    9,208.18x = 12,703.50 × 6,415.30
  4. Step 4: Simplify right side
    9,208.18x = 81,496,763.55
  5. Step 5: Solve for x
    x = 81,496,763.55/9,208.18
  6. Step 6: Final answer
    x = 8,850.47

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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.