Home / 6,345.39-9,499.85-4,778.04

Finding the Fourth Proportional to 6,345.39, 9,499.85 and 4,778.04

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Solution

The fourth proportional to 6,345.39, 9,499.85 and 4,778.04 is: 7,153.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,345.39 : 9,499.85 = 4,778.04 : x
  2. Step 2: Convert to fraction form
    6,345.39/9,499.85 = 4,778.04/x
  3. Step 3: Cross multiply
    6,345.39x = 9,499.85 × 4,778.04
  4. Step 4: Simplify right side
    6,345.39x = 45,390,663.29
  5. Step 5: Solve for x
    x = 45,390,663.29/6,345.39
  6. Step 6: Final answer
    x = 7,153.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.