Home / 17,688.60-26,529.60-7,155.86

Finding the Fourth Proportional to 17,688.60, 26,529.60 and 7,155.86

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Solution

The fourth proportional to 17,688.60, 26,529.60 and 7,155.86 is: 10,732.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,688.60 : 26,529.60 = 7,155.86 : x
  2. Step 2: Convert to fraction form
    17,688.60/26,529.60 = 7,155.86/x
  3. Step 3: Cross multiply
    17,688.60x = 26,529.60 × 7,155.86
  4. Step 4: Simplify right side
    17,688.60x = 189,842,103.46
  5. Step 5: Solve for x
    x = 189,842,103.46/17,688.60
  6. Step 6: Final answer
    x = 10,732.45

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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.