Home / 10,857.89-14,984.15-6,077.79

Finding the Fourth Proportional to 10,857.89, 14,984.15 and 6,077.79

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Solution

The fourth proportional to 10,857.89, 14,984.15 and 6,077.79 is: 8,387.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,857.89 : 14,984.15 = 6,077.79 : x
  2. Step 2: Convert to fraction form
    10,857.89/14,984.15 = 6,077.79/x
  3. Step 3: Cross multiply
    10,857.89x = 14,984.15 × 6,077.79
  4. Step 4: Simplify right side
    10,857.89x = 91,070,486.64
  5. Step 5: Solve for x
    x = 91,070,486.64/10,857.89
  6. Step 6: Final answer
    x = 8,387.50

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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.