Home / 7,990.08-11,012.40-5,333.28

Finding the Fourth Proportional to 7,990.08, 11,012.40 and 5,333.28

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Solution

The fourth proportional to 7,990.08, 11,012.40 and 5,333.28 is: 7,350.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.08 : 11,012.40 = 5,333.28 : x
  2. Step 2: Convert to fraction form
    7,990.08/11,012.40 = 5,333.28/x
  3. Step 3: Cross multiply
    7,990.08x = 11,012.40 × 5,333.28
  4. Step 4: Simplify right side
    7,990.08x = 58,732,212.67
  5. Step 5: Solve for x
    x = 58,732,212.67/7,990.08
  6. Step 6: Final answer
    x = 7,350.64

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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.