Home / 10,272.36-14,181.30-7,909.32

Finding the Fourth Proportional to 10,272.36, 14,181.30 and 7,909.32

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Solution

The fourth proportional to 10,272.36, 14,181.30 and 7,909.32 is: 10,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,272.36 : 14,181.30 = 7,909.32 : x
  2. Step 2: Convert to fraction form
    10,272.36/14,181.30 = 7,909.32/x
  3. Step 3: Cross multiply
    10,272.36x = 14,181.30 × 7,909.32
  4. Step 4: Simplify right side
    10,272.36x = 112,164,439.72
  5. Step 5: Solve for x
    x = 112,164,439.72/10,272.36
  6. Step 6: Final answer
    x = 10,919.05

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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.