Home / 13,410.08-18,493.80-8,374.76

Finding the Fourth Proportional to 13,410.08, 18,493.80 and 8,374.76

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Solution

The fourth proportional to 13,410.08, 18,493.80 and 8,374.76 is: 11,549.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410.08 : 18,493.80 = 8,374.76 : x
  2. Step 2: Convert to fraction form
    13,410.08/18,493.80 = 8,374.76/x
  3. Step 3: Cross multiply
    13,410.08x = 18,493.80 × 8,374.76
  4. Step 4: Simplify right side
    13,410.08x = 154,881,136.49
  5. Step 5: Solve for x
    x = 154,881,136.49/13,410.08
  6. Step 6: Final answer
    x = 11,549.61

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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.