Home / 9,118.80-12,594.33-6,129.45

Finding the Fourth Proportional to 9,118.80, 12,594.33 and 6,129.45

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Solution

The fourth proportional to 9,118.80, 12,594.33 and 6,129.45 is: 8,465.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,118.80 : 12,594.33 = 6,129.45 : x
  2. Step 2: Convert to fraction form
    9,118.80/12,594.33 = 6,129.45/x
  3. Step 3: Cross multiply
    9,118.80x = 12,594.33 × 6,129.45
  4. Step 4: Simplify right side
    9,118.80x = 77,196,222.40
  5. Step 5: Solve for x
    x = 77,196,222.40/9,118.80
  6. Step 6: Final answer
    x = 8,465.61

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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.