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Finding the Fourth Proportional to 7,999.92, 11,035.80 and 7,437.24

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Solution

The fourth proportional to 7,999.92, 11,035.80 and 7,437.24 is: 10,259.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.92 : 11,035.80 = 7,437.24 : x
  2. Step 2: Convert to fraction form
    7,999.92/11,035.80 = 7,437.24/x
  3. Step 3: Cross multiply
    7,999.92x = 11,035.80 × 7,437.24
  4. Step 4: Simplify right side
    7,999.92x = 82,075,893.19
  5. Step 5: Solve for x
    x = 82,075,893.19/7,999.92
  6. Step 6: Final answer
    x = 10,259.59

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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.