Home / 7,390.42-11,039.90-6,648.89

Finding the Fourth Proportional to 7,390.42, 11,039.90 and 6,648.89

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Solution

The fourth proportional to 7,390.42, 11,039.90 and 6,648.89 is: 9,932.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.42 : 11,039.90 = 6,648.89 : x
  2. Step 2: Convert to fraction form
    7,390.42/11,039.90 = 6,648.89/x
  3. Step 3: Cross multiply
    7,390.42x = 11,039.90 × 6,648.89
  4. Step 4: Simplify right side
    7,390.42x = 73,402,992.27
  5. Step 5: Solve for x
    x = 73,402,992.27/7,390.42
  6. Step 6: Final answer
    x = 9,932.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.