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Finding the Fourth Proportional to 7,889.81, 10,888.02 and 4,353.17

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Solution

The fourth proportional to 7,889.81, 10,888.02 and 4,353.17 is: 6,007.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.81 : 10,888.02 = 4,353.17 : x
  2. Step 2: Convert to fraction form
    7,889.81/10,888.02 = 4,353.17/x
  3. Step 3: Cross multiply
    7,889.81x = 10,888.02 × 4,353.17
  4. Step 4: Simplify right side
    7,889.81x = 47,397,347.58
  5. Step 5: Solve for x
    x = 47,397,347.58/7,889.81
  6. Step 6: Final answer
    x = 6,007.42

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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.