Home / 12,528.64-18,795.60-4,737.28

Finding the Fourth Proportional to 12,528.64, 18,795.60 and 4,737.28

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Solution

The fourth proportional to 12,528.64, 18,795.60 and 4,737.28 is: 7,106.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.64 : 18,795.60 = 4,737.28 : x
  2. Step 2: Convert to fraction form
    12,528.64/18,795.60 = 4,737.28/x
  3. Step 3: Cross multiply
    12,528.64x = 18,795.60 × 4,737.28
  4. Step 4: Simplify right side
    12,528.64x = 89,040,019.97
  5. Step 5: Solve for x
    x = 89,040,019.97/12,528.64
  6. Step 6: Final answer
    x = 7,106.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.