Home / 10,821.15-14,933.30-6,347.55

Finding the Fourth Proportional to 10,821.15, 14,933.30 and 6,347.55

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Solution

The fourth proportional to 10,821.15, 14,933.30 and 6,347.55 is: 8,759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.15 : 14,933.30 = 6,347.55 : x
  2. Step 2: Convert to fraction form
    10,821.15/14,933.30 = 6,347.55/x
  3. Step 3: Cross multiply
    10,821.15x = 14,933.30 × 6,347.55
  4. Step 4: Simplify right side
    10,821.15x = 94,789,836.68
  5. Step 5: Solve for x
    x = 94,789,836.68/10,821.15
  6. Step 6: Final answer
    x = 8,759.68

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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.