Home / 17,688.72-26,526.60-5,205.54

Finding the Fourth Proportional to 17,688.72, 26,526.60 and 5,205.54

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Solution

The fourth proportional to 17,688.72, 26,526.60 and 5,205.54 is: 7,806.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,688.72 : 26,526.60 = 5,205.54 : x
  2. Step 2: Convert to fraction form
    17,688.72/26,526.60 = 5,205.54/x
  3. Step 3: Cross multiply
    17,688.72x = 26,526.60 × 5,205.54
  4. Step 4: Simplify right side
    17,688.72x = 138,085,277.36
  5. Step 5: Solve for x
    x = 138,085,277.36/17,688.72
  6. Step 6: Final answer
    x = 7,806.40

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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.