Home / 10,699.92-14,767.56-6,721.56

Finding the Fourth Proportional to 10,699.92, 14,767.56 and 6,721.56

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Solution

The fourth proportional to 10,699.92, 14,767.56 and 6,721.56 is: 9,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,699.92 : 14,767.56 = 6,721.56 : x
  2. Step 2: Convert to fraction form
    10,699.92/14,767.56 = 6,721.56/x
  3. Step 3: Cross multiply
    10,699.92x = 14,767.56 × 6,721.56
  4. Step 4: Simplify right side
    10,699.92x = 99,261,040.59
  5. Step 5: Solve for x
    x = 99,261,040.59/10,699.92
  6. Step 6: Final answer
    x = 9,276.80

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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.