Home / 6,555.96-9,039.35-5,356.51

Finding the Fourth Proportional to 6,555.96, 9,039.35 and 5,356.51

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Solution

The fourth proportional to 6,555.96, 9,039.35 and 5,356.51 is: 7,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.96 : 9,039.35 = 5,356.51 : x
  2. Step 2: Convert to fraction form
    6,555.96/9,039.35 = 5,356.51/x
  3. Step 3: Cross multiply
    6,555.96x = 9,039.35 × 5,356.51
  4. Step 4: Simplify right side
    6,555.96x = 48,419,359.46
  5. Step 5: Solve for x
    x = 48,419,359.46/6,555.96
  6. Step 6: Final answer
    x = 7,385.55

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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.