Home / 10,857.84-14,982.55-6,078.05

Finding the Fourth Proportional to 10,857.84, 14,982.55 and 6,078.05

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Solution

The fourth proportional to 10,857.84, 14,982.55 and 6,078.05 is: 8,387.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,857.84 : 14,982.55 = 6,078.05 : x
  2. Step 2: Convert to fraction form
    10,857.84/14,982.55 = 6,078.05/x
  3. Step 3: Cross multiply
    10,857.84x = 14,982.55 × 6,078.05
  4. Step 4: Simplify right side
    10,857.84x = 91,064,646.15
  5. Step 5: Solve for x
    x = 91,064,646.15/10,857.84
  6. Step 6: Final answer
    x = 8,387.00

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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.