Home / 11,750.78-16,216.54-6,445.82

Finding the Fourth Proportional to 11,750.78, 16,216.54 and 6,445.82

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Solution

The fourth proportional to 11,750.78, 16,216.54 and 6,445.82 is: 8,895.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,750.78 : 16,216.54 = 6,445.82 : x
  2. Step 2: Convert to fraction form
    11,750.78/16,216.54 = 6,445.82/x
  3. Step 3: Cross multiply
    11,750.78x = 16,216.54 × 6,445.82
  4. Step 4: Simplify right side
    11,750.78x = 104,528,897.86
  5. Step 5: Solve for x
    x = 104,528,897.86/11,750.78
  6. Step 6: Final answer
    x = 8,895.49

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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.