Home / 13,707.81-20,565.90-5,806.26

Finding the Fourth Proportional to 13,707.81, 20,565.90 and 5,806.26

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Solution

The fourth proportional to 13,707.81, 20,565.90 and 5,806.26 is: 8,711.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707.81 : 20,565.90 = 5,806.26 : x
  2. Step 2: Convert to fraction form
    13,707.81/20,565.90 = 5,806.26/x
  3. Step 3: Cross multiply
    13,707.81x = 20,565.90 × 5,806.26
  4. Step 4: Simplify right side
    13,707.81x = 119,410,962.53
  5. Step 5: Solve for x
    x = 119,410,962.53/13,707.81
  6. Step 6: Final answer
    x = 8,711.16

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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.