Home / 11,822.66-16,315.07-6,445.15

Finding the Fourth Proportional to 11,822.66, 16,315.07 and 6,445.15

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Solution

The fourth proportional to 11,822.66, 16,315.07 and 6,445.15 is: 8,894.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,822.66 : 16,315.07 = 6,445.15 : x
  2. Step 2: Convert to fraction form
    11,822.66/16,315.07 = 6,445.15/x
  3. Step 3: Cross multiply
    11,822.66x = 16,315.07 × 6,445.15
  4. Step 4: Simplify right side
    11,822.66x = 105,153,128.42
  5. Step 5: Solve for x
    x = 105,153,128.42/11,822.66
  6. Step 6: Final answer
    x = 8,894.20

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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.