Home / 9,129.45-12,594.93-6,444.54

Finding the Fourth Proportional to 9,129.45, 12,594.93 and 6,444.54

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Solution

The fourth proportional to 9,129.45, 12,594.93 and 6,444.54 is: 8,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.45 : 12,594.93 = 6,444.54 : x
  2. Step 2: Convert to fraction form
    9,129.45/12,594.93 = 6,444.54/x
  3. Step 3: Cross multiply
    9,129.45x = 12,594.93 × 6,444.54
  4. Step 4: Simplify right side
    9,129.45x = 81,168,530.18
  5. Step 5: Solve for x
    x = 81,168,530.18/9,129.45
  6. Step 6: Final answer
    x = 8,890.85

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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.