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Finding the Fourth Proportional to 6,888.42, 9,505.47 and 4,055.91

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Solution

The fourth proportional to 6,888.42, 9,505.47 and 4,055.91 is: 5,596.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.42 : 9,505.47 = 4,055.91 : x
  2. Step 2: Convert to fraction form
    6,888.42/9,505.47 = 4,055.91/x
  3. Step 3: Cross multiply
    6,888.42x = 9,505.47 × 4,055.91
  4. Step 4: Simplify right side
    6,888.42x = 38,553,330.83
  5. Step 5: Solve for x
    x = 38,553,330.83/6,888.42
  6. Step 6: Final answer
    x = 5,596.83

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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.