Home / 9,135.15-12,600.53-6,450.30

Finding the Fourth Proportional to 9,135.15, 12,600.53 and 6,450.30

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Solution

The fourth proportional to 9,135.15, 12,600.53 and 6,450.30 is: 8,897.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.15 : 12,600.53 = 6,450.30 : x
  2. Step 2: Convert to fraction form
    9,135.15/12,600.53 = 6,450.30/x
  3. Step 3: Cross multiply
    9,135.15x = 12,600.53 × 6,450.30
  4. Step 4: Simplify right side
    9,135.15x = 81,277,166.41
  5. Step 5: Solve for x
    x = 81,277,166.41/9,135.15
  6. Step 6: Final answer
    x = 8,897.19

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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.