Home / 13,683.07-20,521.67-4,323.81

Finding the Fourth Proportional to 13,683.07, 20,521.67 and 4,323.81

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Solution

The fourth proportional to 13,683.07, 20,521.67 and 4,323.81 is: 6,484.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683.07 : 20,521.67 = 4,323.81 : x
  2. Step 2: Convert to fraction form
    13,683.07/20,521.67 = 4,323.81/x
  3. Step 3: Cross multiply
    13,683.07x = 20,521.67 × 4,323.81
  4. Step 4: Simplify right side
    13,683.07x = 88,731,780.34
  5. Step 5: Solve for x
    x = 88,731,780.34/13,683.07
  6. Step 6: Final answer
    x = 6,484.79

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1.5x scale

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.