Home / 10,750.32-16,110.90-7,987.41

Finding the Fourth Proportional to 10,750.32, 16,110.90 and 7,987.41

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Solution

The fourth proportional to 10,750.32, 16,110.90 and 7,987.41 is: 11,970.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,750.32 : 16,110.90 = 7,987.41 : x
  2. Step 2: Convert to fraction form
    10,750.32/16,110.90 = 7,987.41/x
  3. Step 3: Cross multiply
    10,750.32x = 16,110.90 × 7,987.41
  4. Step 4: Simplify right side
    10,750.32x = 128,684,363.77
  5. Step 5: Solve for x
    x = 128,684,363.77/10,750.32
  6. Step 6: Final answer
    x = 11,970.28

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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.