Home / 7,990.48-11,967.36-4,472.70

Finding the Fourth Proportional to 7,990.48, 11,967.36 and 4,472.70

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Solution

The fourth proportional to 7,990.48, 11,967.36 and 4,472.70 is: 6,698.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.48 : 11,967.36 = 4,472.70 : x
  2. Step 2: Convert to fraction form
    7,990.48/11,967.36 = 4,472.70/x
  3. Step 3: Cross multiply
    7,990.48x = 11,967.36 × 4,472.70
  4. Step 4: Simplify right side
    7,990.48x = 53,526,411.07
  5. Step 5: Solve for x
    x = 53,526,411.07/7,990.48
  6. Step 6: Final answer
    x = 6,698.77

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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.