Home / 11,451.21-15,802.32-6,415.30

Finding the Fourth Proportional to 11,451.21, 15,802.32 and 6,415.30

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Solution

The fourth proportional to 11,451.21, 15,802.32 and 6,415.30 is: 8,852.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.21 : 15,802.32 = 6,415.30 : x
  2. Step 2: Convert to fraction form
    11,451.21/15,802.32 = 6,415.30/x
  3. Step 3: Cross multiply
    11,451.21x = 15,802.32 × 6,415.30
  4. Step 4: Simplify right side
    11,451.21x = 101,376,623.50
  5. Step 5: Solve for x
    x = 101,376,623.50/11,451.21
  6. Step 6: Final answer
    x = 8,852.92

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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.