Home / 13,808.02-19,054.16-8,142.50

Finding the Fourth Proportional to 13,808.02, 19,054.16 and 8,142.50

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Solution

The fourth proportional to 13,808.02, 19,054.16 and 8,142.50 is: 11,236.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.02 : 19,054.16 = 8,142.50 : x
  2. Step 2: Convert to fraction form
    13,808.02/19,054.16 = 8,142.50/x
  3. Step 3: Cross multiply
    13,808.02x = 19,054.16 × 8,142.50
  4. Step 4: Simplify right side
    13,808.02x = 155,148,497.80
  5. Step 5: Solve for x
    x = 155,148,497.80/13,808.02
  6. Step 6: Final answer
    x = 11,236.11

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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.