Home / 7,125.08-9,835.36-6,377.72

Finding the Fourth Proportional to 7,125.08, 9,835.36 and 6,377.72

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Solution

The fourth proportional to 7,125.08, 9,835.36 and 6,377.72 is: 8,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.08 : 9,835.36 = 6,377.72 : x
  2. Step 2: Convert to fraction form
    7,125.08/9,835.36 = 6,377.72/x
  3. Step 3: Cross multiply
    7,125.08x = 9,835.36 × 6,377.72
  4. Step 4: Simplify right side
    7,125.08x = 62,727,180.82
  5. Step 5: Solve for x
    x = 62,727,180.82/7,125.08
  6. Step 6: Final answer
    x = 8,803.71

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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.