Home / 11,781.32-16,252.81-10,438.30

Finding the Fourth Proportional to 11,781.32, 16,252.81 and 10,438.30

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Solution

The fourth proportional to 11,781.32, 16,252.81 and 10,438.30 is: 14,400.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.32 : 16,252.81 = 10,438.30 : x
  2. Step 2: Convert to fraction form
    11,781.32/16,252.81 = 10,438.30/x
  3. Step 3: Cross multiply
    11,781.32x = 16,252.81 × 10,438.30
  4. Step 4: Simplify right side
    11,781.32x = 169,651,656.06
  5. Step 5: Solve for x
    x = 169,651,656.06/11,781.32
  6. Step 6: Final answer
    x = 14,400.05

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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.