Home / 13,526.76-18,666.36-8,493.60

Finding the Fourth Proportional to 13,526.76, 18,666.36 and 8,493.60

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Solution

The fourth proportional to 13,526.76, 18,666.36 and 8,493.60 is: 11,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.76 : 18,666.36 = 8,493.60 : x
  2. Step 2: Convert to fraction form
    13,526.76/18,666.36 = 8,493.60/x
  3. Step 3: Cross multiply
    13,526.76x = 18,666.36 × 8,493.60
  4. Step 4: Simplify right side
    13,526.76x = 158,544,595.30
  5. Step 5: Solve for x
    x = 158,544,595.30/13,526.76
  6. Step 6: Final answer
    x = 11,720.81

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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.