Home / 10,821.74-14,934.11-6,345.61

Finding the Fourth Proportional to 10,821.74, 14,934.11 and 6,345.61

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Solution

The fourth proportional to 10,821.74, 14,934.11 and 6,345.61 is: 8,757.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.74 : 14,934.11 = 6,345.61 : x
  2. Step 2: Convert to fraction form
    10,821.74/14,934.11 = 6,345.61/x
  3. Step 3: Cross multiply
    10,821.74x = 14,934.11 × 6,345.61
  4. Step 4: Simplify right side
    10,821.74x = 94,765,968.69
  5. Step 5: Solve for x
    x = 94,765,968.69/10,821.74
  6. Step 6: Final answer
    x = 8,757.00

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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.