Home / 13,627.49-18,808.20-9,374.99

Finding the Fourth Proportional to 13,627.49, 18,808.20 and 9,374.99

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Solution

The fourth proportional to 13,627.49, 18,808.20 and 9,374.99 is: 12,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,627.49 : 18,808.20 = 9,374.99 : x
  2. Step 2: Convert to fraction form
    13,627.49/18,808.20 = 9,374.99/x
  3. Step 3: Cross multiply
    13,627.49x = 18,808.20 × 9,374.99
  4. Step 4: Simplify right side
    13,627.49x = 176,326,592.88
  5. Step 5: Solve for x
    x = 176,326,592.88/13,627.49
  6. Step 6: Final answer
    x = 12,939.04

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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.