Home / 9,478.32-13,077.45-6,121.27

Finding the Fourth Proportional to 9,478.32, 13,077.45 and 6,121.27

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Solution

The fourth proportional to 9,478.32, 13,077.45 and 6,121.27 is: 8,445.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,478.32 : 13,077.45 = 6,121.27 : x
  2. Step 2: Convert to fraction form
    9,478.32/13,077.45 = 6,121.27/x
  3. Step 3: Cross multiply
    9,478.32x = 13,077.45 × 6,121.27
  4. Step 4: Simplify right side
    9,478.32x = 80,050,658.01
  5. Step 5: Solve for x
    x = 80,050,658.01/9,478.32
  6. Step 6: Final answer
    x = 8,445.66

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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.