Home / 10,327.77-15,405.63-9,331.20

Finding the Fourth Proportional to 10,327.77, 15,405.63 and 9,331.20

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Solution

The fourth proportional to 10,327.77, 15,405.63 and 9,331.20 is: 13,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,327.77 : 15,405.63 = 9,331.20 : x
  2. Step 2: Convert to fraction form
    10,327.77/15,405.63 = 9,331.20/x
  3. Step 3: Cross multiply
    10,327.77x = 15,405.63 × 9,331.20
  4. Step 4: Simplify right side
    10,327.77x = 143,753,014.66
  5. Step 5: Solve for x
    x = 143,753,014.66/10,327.77
  6. Step 6: Final answer
    x = 13,919.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.