Home / 13,631.87-20,435.65-4,864.84

Finding the Fourth Proportional to 13,631.87, 20,435.65 and 4,864.84

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Solution

The fourth proportional to 13,631.87, 20,435.65 and 4,864.84 is: 7,292.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.87 : 20,435.65 = 4,864.84 : x
  2. Step 2: Convert to fraction form
    13,631.87/20,435.65 = 4,864.84/x
  3. Step 3: Cross multiply
    13,631.87x = 20,435.65 × 4,864.84
  4. Step 4: Simplify right side
    13,631.87x = 99,416,167.55
  5. Step 5: Solve for x
    x = 99,416,167.55/13,631.87
  6. Step 6: Final answer
    x = 7,292.92

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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.