Home / 13,670.92-20,509.58-5,875.40

Finding the Fourth Proportional to 13,670.92, 20,509.58 and 5,875.40

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Solution

The fourth proportional to 13,670.92, 20,509.58 and 5,875.40 is: 8,814.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.92 : 20,509.58 = 5,875.40 : x
  2. Step 2: Convert to fraction form
    13,670.92/20,509.58 = 5,875.40/x
  3. Step 3: Cross multiply
    13,670.92x = 20,509.58 × 5,875.40
  4. Step 4: Simplify right side
    13,670.92x = 120,501,986.33
  5. Step 5: Solve for x
    x = 120,501,986.33/13,670.92
  6. Step 6: Final answer
    x = 8,814.48

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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.