Home / 10,327.61-15,507.21-9,105.32

Finding the Fourth Proportional to 10,327.61, 15,507.21 and 9,105.32

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Solution

The fourth proportional to 10,327.61, 15,507.21 and 9,105.32 is: 13,671.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,327.61 : 15,507.21 = 9,105.32 : x
  2. Step 2: Convert to fraction form
    10,327.61/15,507.21 = 9,105.32/x
  3. Step 3: Cross multiply
    10,327.61x = 15,507.21 × 9,105.32
  4. Step 4: Simplify right side
    10,327.61x = 141,198,109.36
  5. Step 5: Solve for x
    x = 141,198,109.36/10,327.61
  6. Step 6: Final answer
    x = 13,671.91

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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.