Home / 11,822.79-16,315.25-6,445.28

Finding the Fourth Proportional to 11,822.79, 16,315.25 and 6,445.28

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Solution

The fourth proportional to 11,822.79, 16,315.25 and 6,445.28 is: 8,894.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,822.79 : 16,315.25 = 6,445.28 : x
  2. Step 2: Convert to fraction form
    11,822.79/16,315.25 = 6,445.28/x
  3. Step 3: Cross multiply
    11,822.79x = 16,315.25 × 6,445.28
  4. Step 4: Simplify right side
    11,822.79x = 105,156,322.29
  5. Step 5: Solve for x
    x = 105,156,322.29/11,822.79
  6. Step 6: Final answer
    x = 8,894.37

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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.