Home / 13,656.04-18,840.27-8,942.92

Finding the Fourth Proportional to 13,656.04, 18,840.27 and 8,942.92

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Solution

The fourth proportional to 13,656.04, 18,840.27 and 8,942.92 is: 12,337.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.04 : 18,840.27 = 8,942.92 : x
  2. Step 2: Convert to fraction form
    13,656.04/18,840.27 = 8,942.92/x
  3. Step 3: Cross multiply
    13,656.04x = 18,840.27 × 8,942.92
  4. Step 4: Simplify right side
    13,656.04x = 168,487,027.39
  5. Step 5: Solve for x
    x = 168,487,027.39/13,656.04
  6. Step 6: Final answer
    x = 12,337.91

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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.