Home / 11,068.56-15,278.70-6,820.32

Finding the Fourth Proportional to 11,068.56, 15,278.70 and 6,820.32

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Solution

The fourth proportional to 11,068.56, 15,278.70 and 6,820.32 is: 9,414.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,068.56 : 15,278.70 = 6,820.32 : x
  2. Step 2: Convert to fraction form
    11,068.56/15,278.70 = 6,820.32/x
  3. Step 3: Cross multiply
    11,068.56x = 15,278.70 × 6,820.32
  4. Step 4: Simplify right side
    11,068.56x = 104,205,623.18
  5. Step 5: Solve for x
    x = 104,205,623.18/11,068.56
  6. Step 6: Final answer
    x = 9,414.56

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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.