Home / 13,817.81-20,730.83-4,459.29

Finding the Fourth Proportional to 13,817.81, 20,730.83 and 4,459.29

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Solution

The fourth proportional to 13,817.81, 20,730.83 and 4,459.29 is: 6,690.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.81 : 20,730.83 = 4,459.29 : x
  2. Step 2: Convert to fraction form
    13,817.81/20,730.83 = 4,459.29/x
  3. Step 3: Cross multiply
    13,817.81x = 20,730.83 × 4,459.29
  4. Step 4: Simplify right side
    13,817.81x = 92,444,760.61
  5. Step 5: Solve for x
    x = 92,444,760.61/13,817.81
  6. Step 6: Final answer
    x = 6,690.26

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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.