Home / 10,876.46-15,036.96-8,039.36

Finding the Fourth Proportional to 10,876.46, 15,036.96 and 8,039.36

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Solution

The fourth proportional to 10,876.46, 15,036.96 and 8,039.36 is: 11,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,876.46 : 15,036.96 = 8,039.36 : x
  2. Step 2: Convert to fraction form
    10,876.46/15,036.96 = 8,039.36/x
  3. Step 3: Cross multiply
    10,876.46x = 15,036.96 × 8,039.36
  4. Step 4: Simplify right side
    10,876.46x = 120,887,534.75
  5. Step 5: Solve for x
    x = 120,887,534.75/10,876.46
  6. Step 6: Final answer
    x = 11,114.60

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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.