Home / 13,838.47-20,778.60-11,056.88

Finding the Fourth Proportional to 13,838.47, 20,778.60 and 11,056.88

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Solution

The fourth proportional to 13,838.47, 20,778.60 and 11,056.88 is: 16,602.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.47 : 20,778.60 = 11,056.88 : x
  2. Step 2: Convert to fraction form
    13,838.47/20,778.60 = 11,056.88/x
  3. Step 3: Cross multiply
    13,838.47x = 20,778.60 × 11,056.88
  4. Step 4: Simplify right side
    13,838.47x = 229,746,486.77
  5. Step 5: Solve for x
    x = 229,746,486.77/13,838.47
  6. Step 6: Final answer
    x = 16,602.02

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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.