Home / 7,989.48-11,026.92-5,007.90

Finding the Fourth Proportional to 7,989.48, 11,026.92 and 5,007.90

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Solution

The fourth proportional to 7,989.48, 11,026.92 and 5,007.90 is: 6,911.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.48 : 11,026.92 = 5,007.90 : x
  2. Step 2: Convert to fraction form
    7,989.48/11,026.92 = 5,007.90/x
  3. Step 3: Cross multiply
    7,989.48x = 11,026.92 × 5,007.90
  4. Step 4: Simplify right side
    7,989.48x = 55,221,712.67
  5. Step 5: Solve for x
    x = 55,221,712.67/7,989.48
  6. Step 6: Final answer
    x = 6,911.80

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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.