Home / 10,561.88-14,562.14-6,778.36

Finding the Fourth Proportional to 10,561.88, 14,562.14 and 6,778.36

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Solution

The fourth proportional to 10,561.88, 14,562.14 and 6,778.36 is: 9,345.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,561.88 : 14,562.14 = 6,778.36 : x
  2. Step 2: Convert to fraction form
    10,561.88/14,562.14 = 6,778.36/x
  3. Step 3: Cross multiply
    10,561.88x = 14,562.14 × 6,778.36
  4. Step 4: Simplify right side
    10,561.88x = 98,707,427.29
  5. Step 5: Solve for x
    x = 98,707,427.29/10,561.88
  6. Step 6: Final answer
    x = 9,345.63

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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.