Home / 13,637.04-20,455.81-4,276.85

Finding the Fourth Proportional to 13,637.04, 20,455.81 and 4,276.85

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Solution

The fourth proportional to 13,637.04, 20,455.81 and 4,276.85 is: 6,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.04 : 20,455.81 = 4,276.85 : x
  2. Step 2: Convert to fraction form
    13,637.04/20,455.81 = 4,276.85/x
  3. Step 3: Cross multiply
    13,637.04x = 20,455.81 × 4,276.85
  4. Step 4: Simplify right side
    13,637.04x = 87,486,433.09
  5. Step 5: Solve for x
    x = 87,486,433.09/13,637.04
  6. Step 6: Final answer
    x = 6,415.35

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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.