Home / 10,764.56-14,849.16-6,988.88

Finding the Fourth Proportional to 10,764.56, 14,849.16 and 6,988.88

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Solution

The fourth proportional to 10,764.56, 14,849.16 and 6,988.88 is: 9,640.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,764.56 : 14,849.16 = 6,988.88 : x
  2. Step 2: Convert to fraction form
    10,764.56/14,849.16 = 6,988.88/x
  3. Step 3: Cross multiply
    10,764.56x = 14,849.16 × 6,988.88
  4. Step 4: Simplify right side
    10,764.56x = 103,778,997.34
  5. Step 5: Solve for x
    x = 103,778,997.34/10,764.56
  6. Step 6: Final answer
    x = 9,640.80

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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.