Home / 11,750.20-16,215.87-6,445.51

Finding the Fourth Proportional to 11,750.20, 16,215.87 and 6,445.51

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Solution

The fourth proportional to 11,750.20, 16,215.87 and 6,445.51 is: 8,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.20 : 16,215.87 = 6,445.51 : x
  2. Step 2: Convert to fraction form
    11,750.20/16,215.87 = 6,445.51/x
  3. Step 3: Cross multiply
    11,750.20x = 16,215.87 × 6,445.51
  4. Step 4: Simplify right side
    11,750.20x = 104,519,552.24
  5. Step 5: Solve for x
    x = 104,519,552.24/11,750.20
  6. Step 6: Final answer
    x = 8,895.13

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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.