Home / 10,008.40-15,015.63-5,327.61

Finding the Fourth Proportional to 10,008.40, 15,015.63 and 5,327.61

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Solution

The fourth proportional to 10,008.40, 15,015.63 and 5,327.61 is: 7,993.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.40 : 15,015.63 = 5,327.61 : x
  2. Step 2: Convert to fraction form
    10,008.40/15,015.63 = 5,327.61/x
  3. Step 3: Cross multiply
    10,008.40x = 15,015.63 × 5,327.61
  4. Step 4: Simplify right side
    10,008.40x = 79,997,420.54
  5. Step 5: Solve for x
    x = 79,997,420.54/10,008.40
  6. Step 6: Final answer
    x = 7,993.03

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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.