Home / 13,655.04-18,838.89-8,941.92

Finding the Fourth Proportional to 13,655.04, 18,838.89 and 8,941.92

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Solution

The fourth proportional to 13,655.04, 18,838.89 and 8,941.92 is: 12,336.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,655.04 : 18,838.89 = 8,941.92 : x
  2. Step 2: Convert to fraction form
    13,655.04/18,838.89 = 8,941.92/x
  3. Step 3: Cross multiply
    13,655.04x = 18,838.89 × 8,941.92
  4. Step 4: Simplify right side
    13,655.04x = 168,455,847.27
  5. Step 5: Solve for x
    x = 168,455,847.27/13,655.04
  6. Step 6: Final answer
    x = 12,336.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.