Home / 13,056.70-18,014.11-7,390.75

Finding the Fourth Proportional to 13,056.70, 18,014.11 and 7,390.75

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Solution

The fourth proportional to 13,056.70, 18,014.11 and 7,390.75 is: 10,196.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.70 : 18,014.11 = 7,390.75 : x
  2. Step 2: Convert to fraction form
    13,056.70/18,014.11 = 7,390.75/x
  3. Step 3: Cross multiply
    13,056.70x = 18,014.11 × 7,390.75
  4. Step 4: Simplify right side
    13,056.70x = 133,137,783.48
  5. Step 5: Solve for x
    x = 133,137,783.48/13,056.70
  6. Step 6: Final answer
    x = 10,196.89

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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.