Home / 13,443.74-20,165.58-3,583.05

Finding the Fourth Proportional to 13,443.74, 20,165.58 and 3,583.05

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Solution

The fourth proportional to 13,443.74, 20,165.58 and 3,583.05 is: 5,374.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,443.74 : 20,165.58 = 3,583.05 : x
  2. Step 2: Convert to fraction form
    13,443.74/20,165.58 = 3,583.05/x
  3. Step 3: Cross multiply
    13,443.74x = 20,165.58 × 3,583.05
  4. Step 4: Simplify right side
    13,443.74x = 72,254,281.42
  5. Step 5: Solve for x
    x = 72,254,281.42/13,443.74
  6. Step 6: Final answer
    x = 5,374.57

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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.